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lubke2005 on 07/29/09

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Last Edited at 07/29/09 10:24am

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Bouncemanagement

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<?php
/*~ phpmailer-bmh_rules.php
.---------------------------------------------------------------------------.
| Software: PHPMailer-BMH (Bounce Mail Handler) |
| Version: 5.0.0rc1 |
| Contact: codeworxtech@users.sourceforge.net |
| Info: http://phpmailer.codeworxtech.com |
| ------------------------------------------------------------------------- |
| Author: Andy Prevost andy.prevost@worxteam.com (admin) |
| Copyright (c) 2002-2009, Andy Prevost. All Rights Reserved. |
| ------------------------------------------------------------------------- |
| License: Distributed under the General Public License (GPL) |
| (http://www.gnu.org/licenses/gpl.html) |
| This program is distributed in the hope that it will be useful - WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. |
| ------------------------------------------------------------------------- |
| This is a update of the original Bounce Mail Handler script |
| http://sourceforge.net/projects/bmh/ |
| The script has been renamed from Bounce Mail Handler to PHPMailer-BMH |
| ------------------------------------------------------------------------- |
| We offer a number of paid services: |
| - Web Hosting on highly optimized fast and secure servers |
| - Technology Consulting |
| - Oursourcing (highly qualified programmers and graphic designers) |
'---------------------------------------------------------------------------'
Last updated: January 21 2009 13:49 EST

/**
* next rule number (BODY): 0238 
* default category: unrecognized: 
* default rule no.: 0000 
*/

global $rule_categories;
$rule_categories = array(
   'antispam'       => array('remove'=>0,'bounce_type'=>'blocked'  )
  ,'autoreply'      => array('remove'=>0,'bounce_type'=>'autoreply')
  ,'concurrent'     => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'content_reject' => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'command_reject' => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'internal_error' => array('remove'=>0,'bounce_type'=>'temporary')
  ,'defer'          => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'delayed'        => array('remove'=>0,'bounce_type'=>'temporary')
  ,'dns_loop'       => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'dns_unknown'    => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'full'           => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'inactive'       => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'latin_only'     => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'other'          => array('remove'=>1,'bounce_type'=>'generic'  )
  ,'oversize'       => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'outofoffice'    => array('remove'=>0,'bounce_type'=>'soft'     )
  ,'unknown'        => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'unrecognized'   => array('remove'=>0,'bounce_type'=>false,     )
  ,'user_reject'    => array('remove'=>1,'bounce_type'=>'hard'     )
  ,'warning'        => array('remove'=>0,'bounce_type'=>'soft'     )
);

/*
 * var for new line ending
 */
 $bmh_newline = " \n";

/**
 * Defined bounce parsing rules for non-standard DSN
 * @param string $body               body of the email
 * @param string $structure          message structure
 * @param boolean $debug_mode        show debug info. or not
 * @return array    $result an array include the following fields: 'email', 'bounce_type','remove','rule_no','rule_cat'
 *                      if we could NOT detect the type of bounce, return rule_no = '0000'
 */
function bmhBodyRules($body,$structure,$debug_mode=false) {
  // initialize the result array
  $result = array(
     'email'       => ''
    ,'bounce_type' => false
    ,'remove'      => 0
    ,'rule_cat'    => 'unrecognized'
    ,'rule_no'     => '0000'
  );

// ======== rule =========
  if (false) {
  }

/*
   * rule: mailbox unknown;
   * sample:
   * xxxxx@yourdomain.com
   * no such address here
   */
  elseif (preg_match ("/(\S+@\S+\w).*\n?.*no such address here/i",$body,$match)) {
    $result['rule_cat']    = 'unknown';
    $result['rule_no']     = '0237';
    $result['email']       = $match[1];
  }

/*
 * <xxxxx@yourdomain.com>:
 * 111.111.111.111 does not like recipient.
 * Remote host said: 550 User unknown
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*\n?.*user unknown/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0236';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox unknown;
 * sample:
 * <xxxxx@yourdomain.com>:
 * Sorry, no mailbox here by that name. vpopmail (#5.1.1)
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*no mailbox/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0157';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox unknown;
 * sample:
 * xxxxx@yourdomain.com 
 * local: Sorry, can't find user's mailbox. (#5.1.1) 
 */
 elseif (preg_match ("/(\S+@\S+\w) .*\n?.*\n?.*can't find.*mailbox/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0164';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox unknown;
 * sample:
 * ##########################################################
 * # This is an automated response from a mail delivery #
 * # program. Your message could not be delivered to #
 * # the following address: #
 * # #
 * # "|/usr/local/bin/mailfilt -u #dkms" #
 * # (reason: Can't create output) #
 * # (expanded from: <xxxxx@yourdomain.com>) #
 * # #
 */
 elseif (preg_match ("/Can't create output.*\n?.*<(\S+@\S+\w)>/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0169';
 $result['email'] = $match[1];
 }

/*
   * rule: mailbox unknown;
   * sample:
   * ????????????????:
   * xxxxx@yourdomain.com : ????, ?????.
   */
  elseif (preg_match ("/(\S+@\S+\w).*=D5=CA=BA=C5=B2=BB=B4=E6=D4=DA/i",$body,$match)) {
    $result['rule_cat']    = 'unknown';
    $result['rule_no']     = '0174';
    $result['email']       = $match[1];
  }

/*
   * rule: mailbox unknown;
   * sample:
   * xxxxx@yourdomain.com
   * Unrouteable address
   */
  elseif (preg_match ("/(\S+@\S+\w).*\n?.*Unrouteable address/i",$body,$match)) {
    $result['rule_cat']    = 'unknown';
    $result['rule_no']     = '0179';
    $result['email']       = $match[1];
  }

/*
   * rule: mailbox unknow;
   * sample:
   * Delivery to the following recipients failed.
   * xxxxx@yourdomain.com
   */
  elseif (preg_match ("/delivery[^\n\r]+failed\S*\s+(\S+@\S+\w)\s/is",$body,$match)) {
    $result['rule_cat']    = 'unknown';
    $result['rule_no']     = '0013';
    $result['email']       = $match[1];
  }

/*
   * rule: mailbox unknow;
   * sample:
   * A message that you sent could not be delivered to one or more of its^M
   * recipients. This is a permanent error. The following address(es) failed:^M
   * ^M
   * xxxxx@yourdomain.com^M
   * unknown local-part "xxxxx" in domain "yourdomain.com"^M
   */
  elseif (preg_match ("/(\S+@\S+\w).*\n?.*unknown local-part/i",$body,$match)) {
    $result['rule_cat']    = 'unknown';
    $result['rule_no']     = '0232';
    $result['email']       = $match[1];
  }

/*
 * rule: mailbox unknow;
 * sample:
 * <xxxxx@yourdomain.com>:^M
 * 111.111.111.11 does not like recipient.^M
 * Remote host said: 550 Invalid recipient: <xxxxx@yourdomain.com>^M
 */
 elseif (preg_match ("/Invalid.*(?:alias|account|recipient|address|email|mailbox|user).*<(\S+@\S+\w)>/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0233';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox unknow;
 * sample:
 * Sent >>> RCPT TO: <xxxxx@yourdomain.com>^M
 * Received <<< 550 xxxxx@yourdomain.com... No such user^M
 * ^M
 * Could not deliver mail to this user.^M
 * xxxxx@yourdomain.com^M
 * ***************** End of message ***************^M
 */
 elseif (preg_match ("/\s(\S+@\S+\w).*No such.*(?:alias|account|recipient|address|email|mailbox|user)>/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0234';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox unknow;
 * sample:
 * <xxxxx@yourdomain.com>:^M
 * This address no longer accepts mail.
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*(?:alias|account|recipient|address|email|mailbox|user).*no.*accept.*mail>/i",$body,$match)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0235';
 $result['email'] = $match[1];
 }

/*
 * rule: full
 * sample 1:
 * <xxxxx@yourdomain.com>:
 * This account is over quota and unable to receive mail.
 * sample 2:
 * <xxxxx@yourdomain.com>:
 * Warning: undefined mail delivery mode: normal (ignored).
 * The users mailfolder is over the allowed quota (size). (#5.2.2)
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*\n?.*over.*quota/i",$body,$match)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0182';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox full;
 * sample:
 * ----- Transcript of session follows -----
 * mail.local: /var/mail/2b/10/kellen.lee: Disc quota exceeded
 * 554 <xxxxx@yourdomain.com>... Service unavailable
 */
 elseif (preg_match ("/quota exceeded.*\n?.*<(\S+@\S+\w)>/i",$body,$match)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0126';
 $result['email'] = $match[1];
 }

/*
 * rule: mailbox full;
 * sample:
 * Hi. This is the qmail-send program at 263.domain.com.
 * <xxxxx@yourdomain.com>:
 * - User disk quota exceeded. (#4.3.0)
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*quota exceeded/i",$body,$match)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0158';
 $result['email'] = $match[1];
 }

/*
   * rule: mailbox full;
   * sample:
   * xxxxx@yourdomain.com
   * mailbox is full (MTA-imposed quota exceeded while writing to file /mbx201/mbx011/A100/09/35/A1000935772/mail/.inbox):
   */
  elseif (preg_match ("/\s(\S+@\S+\w)\s.*\n?.*mailbox.*full/i",$body,$match)) {
    $result['rule_cat']    = 'full';
    $result['rule_no']     = '0166';
    $result['email']       = $match[1];
  }

/*
   * rule: mailbox full;
   * sample:
   * The message to xxxxx@yourdomain.com is bounced because : Quota exceed the hard limit
   */
  elseif (preg_match ("/The message to (\S+@\S+\w)\s.*bounce.*Quota exceed/i",$body,$match)) {
    $result['rule_cat']    = 'full';
    $result['rule_no']     = '0168';
    $result['email']       = $match[1];
  }

/*
 * rule: inactive
 * sample:
 * xxxxx@yourdomain.com 
 * 553 user is inactive (eyou mta)
 */
 elseif (preg_match ("/(\S+@\S+\w) .*\n?.*\n?.*user is inactive/i",$body,$match)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0171';
 $result['email'] = $match[1];
 }

/*
   * rule: inactive
   * sample:
   * xxxxx@yourdomain.com [Inactive account]
   */
  elseif (preg_match ("/(\S+@\S+\w).*inactive account/i",$body,$match)) {
    $result['rule_cat']    = 'inactive';
    $result['rule_no']     = '0181';
    $result['email']       = $match[1];
  }

/*
 * rule: internal_error
 * sample:
 * <xxxxx@yourdomain.com>:
 * Unable to switch to /var/vpopmail/domains/domain.com: input/output error. (#4.3.0)
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*input\/output error/i",$body,$match)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0172';
 $result['bounce_type'] = 'hard';
 $result['remove'] = 1;
 $result['email'] = $match[1];
 }

/*
 * rule: internal_error
 * sample:
 * <xxxxx@yourdomain.com>:
 * can not open new email file errno=13 file=/home/vpopmail/domains/fromc.com/0/domain/Maildir/tmp/1155254417.28358.mx05,S=212350
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*can not open new email file/i",$body,$match)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0173';
 $result['bounce_type'] = 'hard';
 $result['remove'] = 1;
 $result['email'] = $match[1];
 }

/*
 * rule: defer
 * sample:
 * <xxxxx@yourdomain.com>:
 * 111.111.111.111 failed after I sent the message.
 * Remote host said: 451 mta283.mail.scd.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*\n?.*Resources temporarily unavailable/i",$body,$match)) {
 $result['rule_cat'] = 'defer';
 $result['rule_no'] = '0163';
 $result['email'] = $match[1];
 }

/*
   * rule: autoreply
   * sample:
   * AutoReply message from xxxxx@yourdomain.com
   */
  elseif (preg_match ("/^AutoReply message from (\S+@\S+\w)/i",$body,$match)) {
    $result['rule_cat']    = 'autoreply';
    $result['rule_no']     = '0167';
    $result['email']       = $match[1];
  }

/*
 * rule: western chars only
 * sample:
 * <xxxxx@yourdomain.com>:
 * The user does not accept email in non-Western (non-Latin) character sets.
 */
 elseif (preg_match ("/<(\S+@\S+\w)>.*\n?.*does not accept[^
]*non-Western/i",$body,$match)) {
 $result['rule_cat'] = 'latin_only';
 $result['rule_no'] = '0043';
 $result['email'] = $match[1];
 }

global $rule_categories, $bmh_newline;
  if ($result['rule_no'] == '0000') {
    if ($debug_mode) {
      echo 'Body:' . $bmh_newline . $body . $bmh_newline;
      echo $bmh_newline;
    }
  } else {
    if ($result['bounce_type'] === false) {
      $result['bounce_type'] = $rule_categories[$result['rule_cat']]['bounce_type'];
      $result['remove']      = $rule_categories[$result['rule_cat']]['remove'];
    }
  }
  return $result;
}

/**
 * Defined bounce parsing rules for standard DSN (Delivery Status Notification)
 *
 * @param string  $dsn_msg           human-readable explanation
 * @param string  $dsn_report        delivery-status report
 * @param boolean $debug_mode        show debug info. or not
 * @return array    $result an array include the following fields: 'email', 'bounce_type','remove','rule_no','rule_cat'
 *                      if we could NOT detect the type of bounce, return rule_no = '0000'
 */
function bmhDSNRules($dsn_msg,$dsn_report,$debug_mode=false) {
  // initialize the result array
  $result = array(
    'email'        => ''
    ,'bounce_type' => false
    ,'remove'      => 0
    ,'rule_cat'    => 'unrecognized'
    ,'rule_no'     => '0000'
  );
  $action      = false;
  $status_code = false;
  $diag_code   = false;

// ======= parse $dsn_report ======
  // get the recipient email
  if (preg_match ("/Original-Recipient: rfc822;(.*)/i",$dsn_report,$match)) {
    $email_arr = imap_rfc822_parse_adrlist($match[1],'default.domain.name');
    if (isset($email_arr[0]->host) && $email_arr[0]->host != '.SYNTAX-ERROR.' && $email_arr[0]->host != 'default.domain.name' ) {
      $result['email']       = $email_arr[0]->mailbox.'@'.$email_arr[0]->host;
    }
  } else if (preg_match ("/Final-Recipient: rfc822;(.*)/i",$dsn_report,$match)) {
    $email_arr = imap_rfc822_parse_adrlist($match[1],'default.domain.name');
    if (isset($email_arr[0]->host) && $email_arr[0]->host != '.SYNTAX-ERROR.' && $email_arr[0]->host != 'default.domain.name' ) {
      $result['email']       = $email_arr[0]->mailbox.'@'.$email_arr[0]->host;
    }
  }

if (preg_match ("/Action: (.+)/i",$dsn_report,$match)) {
    $action = strtolower(trim($match[1]));
  }

if (preg_match ("/Status: ([0-9\.]+)/i",$dsn_report,$match)) {
    $status_code = $match[1];
  }

// Could be multi-line , if the new line is beginning with SPACE or HTAB
 if (preg_match ("/Diagnostic-Code:((?:[^\n]|\n[\t ])+)(?:\n[^\t ]|$)/is",$dsn_report,$match)) {
 $diag_code = $match[1];
 }
 // ======= rules ======
 if (empty($result['email'])) {
 /* email address is empty
 * rule: full
 * sample: DSN Message only
 * User quota exceeded: SMTP <xxxxx@yourdomain.com>
 */
 if (preg_match ("/quota exceed.*<(\S+@\S+\w)>/is",$dsn_msg,$match)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0161';
 $result['email'] = $match[1];
 }
 } else {
 /* action could be one of them as RFC:1894
 * "failed" / "delayed" / "delivered" / "relayed" / "expanded"
 */
 switch ($action) {
 case 'failed':
 /* rule: full
 * sample:
 * Diagnostic-Code: X-Postfix; me.domain.com platform: said: 552 5.2.2 Over
 * quota (in reply to RCPT TO command)
 */
 if (preg_match ("/over.*quota/is",$diag_code)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0105';
 }
 /* rule: full
 * sample:
 * Diagnostic-Code: SMTP; 552 Requested mailbox exceeds quota.
 */
 elseif (preg_match ("/exceed.*quota/is",$diag_code)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0129';
 }
 /* rule: full
 * sample 1:
 * Diagnostic-Code: smtp;552 5.2.2 This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again.
 * sample 2:
 * Diagnostic-Code: X-Postfix; host mta5.us4.domain.com.int[111.111.111.111] said:
 * 552 recipient storage full, try again later (in reply to RCPT TO command)
 * sample 3:
 * Diagnostic-Code: X-HERMES; host 127.0.0.1[127.0.0.1] said: 551 bounce as<the
 * destination mailbox <xxxxx@yourdomain.com> is full> queue as
 * 100.1.ZmxEL.720k.1140313037.xxxxx@yourdomain.com (in reply to end of
 * DATA command)
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*full/is",$diag_code)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0145';
 }
 /* rule: full
 * sample:
 * Diagnostic-Code: SMTP; 452 Insufficient system storage
 */
 elseif (preg_match ("/Insufficient system storage/is",$diag_code)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0134';
 }
 /* rule: full
 * sample 1:
 * Diagnostic-Code: X-Postfix; cannot append message to destination file^M
 * /var/mail/dale.me89g: error writing message: File too large^M
 * sample 2:
 * Diagnostic-Code: X-Postfix; cannot access mailbox /var/spool/mail/b8843022 for^M
 * user xxxxx. error writing message: File too large
 */
 elseif (preg_match ("/File too large/is",$diag_code)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0192';
 }
 /* rule: oversize
 * sample:
 * Diagnostic-Code: smtp;552 5.2.2 This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again.
 */
 elseif (preg_match ("/larger than.*limit/is",$diag_code)) {
 $result['rule_cat'] = 'oversize';
 $result['rule_no'] = '0146';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: X-Notes; User xxxxx (xxxxx@yourdomain.com) not listed in public Name & Address Book
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user)(.*)not(.*)list/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0103';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: smtp; 450 user path no exist
 */
 elseif (preg_match ("/user path no exist/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0106';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 Relaying denied.
 * sample 2:
 * Diagnostic-Code: SMTP; 554 <xxxxx@yourdomain.com>: Relay access denied
 * sample 3:
 * Diagnostic-Code: SMTP; 550 relaying to <xxxxx@yourdomain.com> prohibited by administrator
 */
 elseif (preg_match ("/Relay.*(?:denied|prohibited)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0108';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 554 qq Sorry, no valid recipients (#5.1.3)
 */
 elseif (preg_match ("/no.*valid.*(?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0185';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 Â«DÂªkÂ¦aÂ§} - invalid address (#5.5.0)
 * sample 2:
 * Diagnostic-Code: SMTP; 550 Invalid recipient: <xxxxx@yourdomain.com>
 * sample 3:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>: Invalid User
 */
 elseif (preg_match ("/Invalid.*(?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0111';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 554 delivery error: dd Sorry your message to xxxxx@yourdomain.com cannot be delivered. This account has been disabled or discontinued [#102]. - mta173.mail.tpe.domain.com
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*(?:disabled|discontinued)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0114';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 554 delivery error: dd This user doesn't have a domain.com account (www.xxxxx@yourdomain.com) [0] - mta134.mail.tpe.domain.com
 */
 elseif (preg_match ("/user doesn't have.*account/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0127';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 5.1.1 unknown or illegal alias: xxxxx@yourdomain.com
 */
 elseif (preg_match ("/(?:unknown|illegal).*(?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0128';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 450 mailbox unavailable.
 * sample 2:
 * Diagnostic-Code: SMTP; 550 5.7.1 Requested action not taken: mailbox not available
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*(?:un|not\s+)available/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0122';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 553 sorry, no mailbox here by that name (#5.7.1)
 */
 elseif (preg_match ("/no (?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0123';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 User (xxxxx@yourdomain.com) unknown.
 * sample 2:
 * Diagnostic-Code: SMTP; 553 5.3.0 <xxxxx@yourdomain.com>... Addressee unknown, relay=[111.111.111.000]
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*unknown/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0125';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 user disabled
 * sample 2:
 * Diagnostic-Code: SMTP; 452 4.2.1 mailbox temporarily disabled: xxxxx@yourdomain.com
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*disabled/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0133';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>: Recipient address rejected: No such user (xxxxx@yourdomain.com)
 */
 elseif (preg_match ("/No such (?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0143';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 MAILBOX NOT FOUND
 * sample 2:
 * Diagnostic-Code: SMTP; 550 Mailbox ( xxxxx@yourdomain.com ) not found or inactivated
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*NOT FOUND/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0136';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: X-Postfix; host m2w-in1.domain.com[111.111.111.000] said: 551
 * <xxxxx@yourdomain.com> is a deactivated mailbox (in reply to RCPT TO
 * command)
 */
 elseif (preg_match ("/deactivated (?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0138';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com> recipient rejected
 * ...
 * <<< 550 <xxxxx@yourdomain.com> recipient rejected
 * 550 5.1.1 xxxxx@yourdomain.com... User unknown
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*reject/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0148';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: smtp; 5.x.0 - Message bounced by administrator (delivery attempts: 0)
 */
 elseif (preg_match ("/bounce.*administrator/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0151';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 <maxqin> is now disabled with MTA service.
 */
 elseif (preg_match ("/<.*>.*disabled/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0152';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 551 not our customer
 */
 elseif (preg_match ("/not our customer/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0154';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: smtp; 5.1.0 - Unknown address error 540-'Error: Wrong recipients' (delivery attempts: 0)
 */
 elseif (preg_match ("/Wrong (?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0159';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: smtp; 5.1.0 - Unknown address error 540-'Error: Wrong recipients' (delivery attempts: 0)
 * sample 2:
 * Diagnostic-Code: SMTP; 501 #5.1.1 bad address xxxxx@yourdomain.com
 */
 elseif (preg_match ("/(?:unknown|bad).*(?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0160';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 Command RCPT User <xxxxx@yourdomain.com> not OK
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*not OK/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0186';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 5.7.1 Access-Denied-XM.SSR-001
 */
 elseif (preg_match ("/Access.*Denied/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0189';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 5.1.1 <xxxxx@yourdomain.com>... email address lookup in domain map failed^M
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*lookup.*fail/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0195';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 User not a member of domain: <xxxxx@yourdomain.com>^M
 */
 elseif (preg_match ("/(?:recipient|address|email|mailbox|user).*not.*member of domain/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0198';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550-"The recipient cannot be verified. Please check all recipients of this^M
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*cannot be verified/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0202';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 Unable to relay for xxxxx@yourdomain.com
 */
 elseif (preg_match ("/Unable to relay/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0203';
 }
 /* rule: unknown
 * sample 1:
 * Diagnostic-Code: SMTP; 550 xxxxx@yourdomain.com:user not exist
 * sample 2:
 * Diagnostic-Code: SMTP; 550 sorry, that recipient doesn't exist (#5.7.1)
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*(?:n't|not) exist/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0205';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550-I'm sorry but xxxxx@yourdomain.com does not have an account here. I will not
 */
 elseif (preg_match ("/not have an account/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0207';
 }
 /* rule: unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 This account is not allowed...xxxxx@yourdomain.com
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*is not allowed/is",$diag_code)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0220';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>: inactive user
 */
 elseif (preg_match ("/inactive.*(?:alias|account|recipient|address|email|mailbox|user)/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0135';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 550 xxxxx@yourdomain.com Account Inactive
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*Inactive/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0155';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>: Recipient address rejected: Account closed due to inactivity. No forwarding information is available.
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user) closed due to inactivity/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0170';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>... User account not activated
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user) not activated/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0177';
 }
 /* rule: inactive
 * sample 1:
 * Diagnostic-Code: SMTP; 550 User suspended
 * sample 2:
 * Diagnostic-Code: SMTP; 550 account expired
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*(?:suspend|expire)/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0183';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 553 5.3.0 <xxxxx@yourdomain.com>... Recipient address no longer exists
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*no longer exist/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0184';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 553 VS10-RT Possible forgery or deactivated due to abuse (#5.1.1) 111.111.111.211^M
 */
 elseif (preg_match ("/(?:forgery|abuse)/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0196';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 553 mailbox xxxxx@yourdomain.com is restricted
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*restrict/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0209';
 }
 /* rule: inactive
 * sample:
 * Diagnostic-Code: SMTP; 550 <xxxxx@yourdomain.com>: User status is locked.
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*locked/is",$diag_code)) {
 $result['rule_cat'] = 'inactive';
 $result['rule_no'] = '0228';
 }
 /* rule: user_reject
 * sample:
 * Diagnostic-Code: SMTP; 553 User refused to receive this mail.
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user) refused/is",$diag_code)) {
 $result['rule_cat'] = 'user_reject';
 $result['rule_no'] = '0156';
 }
 /* rule: user_reject
 * sample:
 * Diagnostic-Code: SMTP; 501 xxxxx@yourdomain.com Sender email is not in my domain
 */
 elseif (preg_match ("/sender.*not/is",$diag_code)) {
 $result['rule_cat'] = 'user_reject';
 $result['rule_no'] = '0206';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 554 Message refused
 */
 elseif (preg_match ("/Message refused/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0175';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 550 5.0.0 <xxxxx@yourdomain.com>... No permit
 */
 elseif (preg_match ("/No permit/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0190';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.5.3 - chkuser)
 */
 elseif (preg_match ("/domain isn't in.*allowed rcpthost/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0191';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 553 AUTH FAILED - xxxxx@yourdomain.com^M
 */
 elseif (preg_match ("/AUTH FAILED/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0197';
 }
 /* rule: command_reject
 * sample 1:
 * Diagnostic-Code: SMTP; 550 relay not permitted^M
 * sample 2:
 * Diagnostic-Code: SMTP; 530 5.7.1 Relaying not allowed: xxxxx@yourdomain.com
 */
 elseif (preg_match ("/relay.*not.*(?:permit|allow)/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0201';
 }
 /* rule: command_reject
 * sample:
 *
 * Diagnostic-Code: SMTP; 550 not local host domain.com, not a gateway
 */
 elseif (preg_match ("/not local host/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0204';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 500 Unauthorized relay msg rejected
 */
 elseif (preg_match ("/Unauthorized relay/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0215';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 554 Transaction failed
 */
 elseif (preg_match ("/Transaction.*fail/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0221';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: smtp;554 5.5.2 Invalid data in message
 */
 elseif (preg_match ("/Invalid data/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0223';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 550 Local user only or Authentication mechanism
 */
 elseif (preg_match ("/Local user only/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0224';
 }
 /* rule: command_reject
 * sample:
 * Diagnostic-Code: SMTP; 550-ds176.domain.com [111.111.111.211] is currently not permitted to
 * relay through this server. Perhaps you have not logged into the pop/imap
 * server in the last 30 minutes or do not have SMTP Authentication turned on
 * in your email client.
 */
 elseif (preg_match ("/not.*permit.*to/is",$diag_code)) {
 $result['rule_cat'] = 'command_reject';
 $result['rule_no'] = '0225';
 }
 /* rule: content_reject
 * sample:
 * Diagnostic-Code: SMTP; 550 Content reject. FAAAANsG60M9BmDT.1
 */
 elseif (preg_match ("/Content reject/is",$diag_code)) {
 $result['rule_cat'] = 'content_reject';
 $result['rule_no'] = '0165';
 }
 /* rule: content_reject
 * sample:
 * Diagnostic-Code: SMTP; 552 MessageWall: MIME/REJECT: Invalid structure
 */
 elseif (preg_match ("/MIME\/REJECT/is",$diag_code)) {
 $result['rule_cat'] = 'content_reject';
 $result['rule_no'] = '0212';
 }
 /* rule: content_reject
 * sample:
 * Diagnostic-Code: smtp; 554 5.6.0 Message with invalid header rejected, id=13462-01 - MIME error: error: UnexpectedBound: part didn't end with expected boundary [in multipart message]; EOSToken: EOF; EOSType: EOF
 */
 elseif (preg_match ("/MIME error/is",$diag_code)) {
 $result['rule_cat'] = 'content_reject';
 $result['rule_no'] = '0217';
 }
 /* rule: content_reject
 * sample:
 * Diagnostic-Code: SMTP; 553 Mail data refused by AISP, rule [169648].
 */
 elseif (preg_match ("/Mail data refused.*AISP/is",$diag_code)) {
 $result['rule_cat'] = 'content_reject';
 $result['rule_no'] = '0218';
 }
 /* rule: dns_unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 Host unknown
 */
 elseif (preg_match ("/Host unknown/is",$diag_code)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0130';
 }
 /* rule: dns_unknown
 * sample:
 * Diagnostic-Code: SMTP; 553 Specified domain is not allowed.
 */
 elseif (preg_match ("/Specified domain.*not.*allow/is",$diag_code)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0180';
 }
 /* rule: dns_unknown
 * sample:
 * Diagnostic-Code: X-Postfix; delivery temporarily suspended: connect to
 * 111.111.11.112[111.111.11.112]: No route to host
 */
 elseif (preg_match ("/No route to host/is",$diag_code)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0188';
 }
 /* rule: dns_unknown
 * sample:
 * Diagnostic-Code: SMTP; 550 unrouteable address
 */
 elseif (preg_match ("/unrouteable address/is",$diag_code)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0208';
 }
 /* rule: defer
 * sample:
 * Diagnostic-Code: SMTP; 451 System(u) busy, try again later.
 */
 elseif (preg_match ("/System.*busy/is",$diag_code)) {
 $result['rule_cat'] = 'defer';
 $result['rule_no'] = '0112';
 }
 /* rule: defer
 * sample:
 * Diagnostic-Code: SMTP; 451 mta172.mail.tpe.domain.com Resources temporarily unavailable. Please try again later. [#4.16.4:70].
 */
 elseif (preg_match ("/Resources temporarily unavailable/is",$diag_code)) {
 $result['rule_cat'] = 'defer';
 $result['rule_no'] = '0116';
 }
 /* rule: antispam, deny ip
 * sample:
 * Diagnostic-Code: SMTP; 554 sender is rejected: 0,mx20,wKjR5bDrnoM2yNtEZVAkBg==.32467S2
 */
 elseif (preg_match ("/sender is rejected/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0101';
 }
 /* rule: antispam, deny ip
 * sample:
 * Diagnostic-Code: SMTP; 554 <unknown[111.111.111.000]>: Client host rejected: Access denied
 */
 elseif (preg_match ("/Client host rejected/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0102';
 }
 /* rule: antispam, mismatch ip
 * sample:
 * Diagnostic-Code: SMTP; 554 Connection refused(mx). MAIL FROM [xxxxx@yourdomain.com] mismatches client IP [111.111.111.000].
 */
 elseif (preg_match ("/MAIL FROM(.*)mismatches client IP/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0104';
 }
 /* rule: antispam, deny ip
 * sample:
 * Diagnostic-Code: SMTP; 554 Please visit http:// antispam.domain.com/denyip.php?IP=111.111.111.000 (#5.7.1)
 */
 elseif (preg_match ("/denyip/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0144';
 }
 /* rule: antispam, deny ip
 * sample:
 * Diagnostic-Code: SMTP; 554 Service unavailable; Client host [111.111.111.211] blocked using dynablock.domain.com; Your message could not be delivered due to complaints we received regarding the IP address you're using or your ISP. See http:// blackholes.domain.com/ Error: WS-02^M
 */
 elseif (preg_match ("/client host.*blocked/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0201';
 }
 /* rule: antispam, reject
 * sample:
 * Diagnostic-Code: SMTP; 550 Requested action not taken: mail IsCNAPF76kMDARUY.56621S2 is rejected,mx3,BM
 */
 elseif (preg_match ("/mail.*reject/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0147';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 552 sorry, the spam message is detected (#5.6.0)
 */
 elseif (preg_match ("/spam.*detect/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0162';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 554 5.7.1 Rejected as Spam see: http:// rejected.domain.com/help/spam/rejected.html
 */
 elseif (preg_match ("/reject.*spam/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0216';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 553 5.7.1 <xxxxx@yourdomain.com>... SpamTrap=reject mode, dsn=5.7.1, Message blocked by BOX Solutions (www.domain.com) SpamTrap Technology, please contact the domain.com site manager for help: (ctlusr8012).^M
 */
 elseif (preg_match ("/SpamTrap/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0200';
 }
 /* rule: antispam, mailfrom mismatch
 * sample:
 * Diagnostic-Code: SMTP; 550 Verify mailfrom failed,blocked
 */
 elseif (preg_match ("/Verify mailfrom failed/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0210';
 }
 /* rule: antispam, mailfrom mismatch
 * sample:
 * Diagnostic-Code: SMTP; 550 Error: MAIL FROM is mismatched with message header from address!
 */
 elseif (preg_match ("/MAIL.*FROM.*mismatch/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0226';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 554 5.7.1 Message scored too high on spam scale. For help, please quote incident ID 22492290.
 */
 elseif (preg_match ("/spam scale/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0211';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 554 5.7.1 reject: Client host bypassing service provider's mail relay: ds176.domain.com
 8?
 elseif (preg_match ("/Client host bypass/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0229';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 550 sorry, it seems as a junk mail
 */
 elseif (preg_match ("/junk mail/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0230';
 }
 /* rule: antispam
 * sample:
 * Diagnostic-Code: SMTP; 553-Message filtered. Please see the FAQs section on spam
 */
 elseif (preg_match ("/message filtered/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0227';
 }
 /* rule: antispam, subject filter
 * sample:
 * Diagnostic-Code: SMTP; 554 5.7.1 The message from (<xxxxx@yourdomain.com>) with the subject of ( *(ca2639) 7|-{%2E* : {2"(%EJ;y} (SBI$#$@<K*:7s1!=l~) matches a profile the Internet community may consider spam. Please revise your message before resending.
 */
 elseif (preg_match ("/subject.*consider.*spam/is",$diag_code)) {
 $result['rule_cat'] = 'antispam';
 $result['rule_no'] = '0222';
 }
 /* rule: internal_error
 * sample:
 * Diagnostic-Code: SMTP; 451 Temporary local problem - please try later
 */
 elseif (preg_match ("/Temporary local problem/is",$diag_code)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0142';
 }
 /* rule: internal_error
 * sample:
 * Diagnostic-Code: SMTP; 553 5.3.5 system config error
 */
 elseif (preg_match ("/system config error/is",$diag_code)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0153';
 }
 /* rule: delayed
 * sample:
 * Diagnostic-Code: X-Postfix; delivery temporarily suspended: conversation with^M
 * 111.111.111.11[111.111.111.11] timed out while sending end of data -- message may be^M
 * sent more than once
 */
 elseif (preg_match ("/delivery.*suspend/is",$diag_code)) {
 $result['rule_cat'] = 'delayed';
 $result['rule_no'] = '0213';
 }

// =========== rules based on the dsn_msg ===============
 /* rule: unknown
 * sample:
 * ----- The following addresses had permanent fatal errors -----
 * <xxxxx@yourdomain.com>
 * ----- Transcript of session follows -----
 * ... while talking to mta1.domain.com.:
 * >>> DATA
 * <<< 503 All recipients are invalid
 * 554 5.0.0 Service unavailable
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user)(.*)invalid/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0107';
 }
 /* rule: unknown
 * sample:
 * ----- Transcript of session follows -----
 * xxxxx@yourdomain.com... Deferred: No such file or directory
 */
 elseif (preg_match ("/Deferred.*No such.*(?:file|directory)/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0141';
 }
 /* rule: unknown
 * sample:
 * Failed to deliver to '<xxxxx@yourdomain.com>'^M
 * LOCAL module(account xxxx) reports:^M
 * mail receiving disabled^M
 */
 elseif (preg_match ("/mail receiving disabled/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0194';
 }
 /* rule: unknown
 * sample:
 * - These recipients of your message have been processed by the mail server:^M
 * xxxxx@yourdomain.com; Failed; 5.1.1 (bad destination mailbox address)
 */
 elseif (preg_match ("/bad.*(?:alias|account|recipient|address|email|mailbox|user)/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '227';
 }
 /* rule: full
 * sample 1:
 * This Message was undeliverable due to the following reason:
 * The user(s) account is temporarily over quota.
 * <xxxxx@yourdomain.com>
 * sample 2:
 * Recipient address: xxxxx@yourdomain.com
 * Reason: Over quota
 */
 elseif (preg_match ("/over.*quota/i",$dsn_msg)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0131';
 }
 /* rule: full
 * sample:
 * Sorry the recipient quota limit is exceeded.
 * This message is returned as an error.
 */
 elseif (preg_match ("/quota.*exceeded/i",$dsn_msg)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0150';
 }
 /* rule: full
 * sample:
 * The user to whom this message was addressed has exceeded the allowed mailbox
 * quota. Please resend the message at a later time.
 */
 elseif (preg_match ("/exceed.*\n?.*quota/i",$dsn_msg)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0187';
 }
 /* rule: full
 * sample 1:
 * Failed to deliver to '<xxxxx@yourdomain.com>'
 * LOCAL module(account xxxxxx) reports:
 * account is full (quota exceeded)
 * sample 2:
 * Error in fabiomod_sql_glob_init: no data source specified - database access disabled
 * [Fri Feb 17 23:29:38 PST 2006] full error for caltsmy:
 * that member's mailbox is full
 * 550 5.0.0 <xxxxx@yourdomain.com>... Can't create output
 */
 elseif (preg_match ("/(?:alias|account|recipient|address|email|mailbox|user).*full/i",$dsn_msg)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0132';
 }
 /* rule: full
 * sample:
 * gaosong "(0), ErrMsg=Mailbox space not enough (space limit is 10240KB)
 */
 elseif (preg_match ("/space.*not.*enough/i",$dsn_msg)) {
 $result['rule_cat'] = 'full';
 $result['rule_no'] = '0219';
 }
 /* rule: defer
 * sample 1:
 * ----- Transcript of session follows -----
 * xxxxx@yourdomain.com... Deferred: Connection refused by nomail.tpe.domain.com.
 * Message could not be delivered for 5 days
 * Message will be deleted from queue
 * sample 2:
 * 451 4.4.1 reply: read error from www.domain.com.
 * xxxxx@yourdomain.com... Deferred: Connection reset by www.domain.com.
 */
 elseif (preg_match ("/Deferred.*Connection (?:refused|reset)/i",$dsn_msg)) {
 $result['rule_cat'] = 'defer';
 $result['rule_no'] = '0115';
 }
 /* rule: dns_unknown
 * sample:
 * ----- The following addresses had permanent fatal errors -----
 * Tan XXXX SSSS <xxxxx@yourdomain..com>
 * ----- Transcript of session follows -----
 * 553 5.1.2 XXXX SSSS <xxxxx@yourdomain..com>... Invalid host name
 */
 elseif (preg_match ("/Invalid host name/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0109';
 }
 /* rule: dns_unknown
 * sample:
 * ----- Transcript of session follows -----
 * xxxxx@yourdomain.com... Deferred: mail.domain.com.: No route to host
 */
 elseif (preg_match ("/Deferred.*No route to host/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0109';
 }
 /* rule: dns_unknown
 * sample:
 * ----- Transcript of session follows -----
 * 550 5.1.2 xxxxx@yourdomain.com... Host unknown (Name server: .: no data known)
 */
 elseif (preg_match ("/Host unknown/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0140';
 }
 /* rule: dns_unknown
 * sample:
 * ----- Transcript of session follows -----
 * 451 HOTMAIL.com.tw: Name server timeout
 * Message could not be delivered for 5 days
 * Message will be deleted from queue
 */
 elseif (preg_match ("/Name server timeout/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0118';
 }
 /* rule: dns_unknown
 * sample:
 * ----- Transcript of session follows -----
 * xxxxx@yourdomain.com... Deferred: Connection timed out with hkfight.com.
 * Message could not be delivered for 5 days
 * Message will be deleted from queue
 */
 elseif (preg_match ("/Deferred.*Connection.*tim(?:e|ed).*out/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0119';
 }
 /* rule: dns_unknown
 * sample:
 * ----- Transcript of session follows -----
 * xxxxx@yourdomain.com... Deferred: Name server: domain.com.: host name lookup failure
 */
 elseif (preg_match ("/Deferred.*host name lookup failure/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_unknown';
 $result['rule_no'] = '0121';
 }
 /* rule: dns_loop
 * sample:
 * ----- Transcript of session follows -----^M
 * 554 5.0.0 MX list for znet.ws. points back to mail01.domain.com^M
 * 554 5.3.5 Local configuration error^M
 */
 elseif (preg_match ("/MX list.*point.*back/i",$dsn_msg)) {
 $result['rule_cat'] = 'dns_loop';
 $result['rule_no'] = '0199';
 }
 /* rule: internal_error
 * sample:
 * ----- Transcript of session follows -----
 * 451 4.0.0 I/O error
 */
 elseif (preg_match ("/I\/O error/i",$dsn_msg)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0120';
 }
 /* rule: internal_error
 * sample:
 * Failed to deliver to 'xxxxx@yourdomain.com'^M
 * SMTP module(domain domain.com) reports:^M
 * connection with mx1.mail.domain.com is broken^M
 */
 elseif (preg_match ("/connection.*broken/i",$dsn_msg)) {
 $result['rule_cat'] = 'internal_error';
 $result['rule_no'] = '0231';
 }
 /* rule: other
 * sample:
 * Delivery to the following recipients failed.
 * xxxxx@yourdomain.com
 */
 elseif (preg_match ("/Delivery to the following recipients failed.*\n.*\n.*".$result['email']."/i",$dsn_msg)) {
 $result['rule_cat'] = 'other';
 $result['rule_no'] = '0176';
 }

// Followings are wind-up rule: must be the last one
        //   many other rules msg end up with "550 5.1.1 ... User unknown"
        //   many other rules msg end up with "554 5.0.0 Service unavailable"

/* rule: unknown
 * sample 1:
 * ----- The following addresses had permanent fatal errors -----^M
 * <xxxxx@yourdomain.com>^M
 * (reason: User unknown)^M
 * sample 2:
 * 550 5.1.1 xxxxx@yourdomain.com... User unknown^M
 */
 elseif (preg_match ("/User unknown/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0193';
 }
 /* rule: unknown
 * sample:
 * 554 5.0.0 Service unavailable
 */
 elseif (preg_match ("/Service unavailable/i",$dsn_msg)) {
 $result['rule_cat'] = 'unknown';
 $result['rule_no'] = '0214';
 }
 break;
 case 'delayed':
 $result['rule_cat'] = 'delayed';
 $result['rule_no'] = '0110';
 break;
 case 'delivered':
 case 'relayed':
 case 'expanded': // unhandled cases
 break;
 default :
 break;
 }
 }

global $rule_categories, $bmh_newline;
 if ($result['rule_no'] == '0000') {
 if ($debug_mode) {
 echo 'email: ' . $result['email'] . $bmh_newline;
 echo 'Action: ' . $action . $bmh_newline;
 echo 'Status: ' . $status_code . $bmh_newline;
 echo 'Diagnostic-Code: ' . $diag_code . $bmh_newline;
 echo "DSN Message: \n" . $dsn_msg . $bmh_newline;
 echo $bmh_newline;
 }
 } else {
 if ($result['bounce_type'] === false) {
 $result['bounce_type'] = $rule_categories[$result['rule_cat']]['bounce_type'];
 $result['remove'] = $rule_categories[$result['rule_cat']]['remove'];
 }
 }
 return $result;
}
?>

URL: http://sourceforge.net/projects/bmh

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