#import "MyHandler.h"

@implementation MyHandler

- (id)renderWithTransport:(BxTransport *)transport {
    if (! [transport.requestPath isEqualToString:@"/favicon.ico"]) {
        BxMailerAttachment *attachment = [[[BxMailerAttachment alloc] initWithName:@"cheese.jpg" path:@"/Users/dblais/Desktop/selected.png"] autorelease];
        [[BxMailer systemMailer] sendMessage:@"The Message"
                                     subject:@"The Subject"
                                          to:@"[email protected]"
                                        from:@"[email protected]"
                                     headers:nil
                                 attachments:attachment, nil];
    }
    return self;
}

@end

BxMailer attachment with nil header field

Objective C