Adding a "Has Attachment" header

[Drew Morris]

Hi All...

I am working on a custom delivery script that is used after MailScanner has already run. The script uses many of the headers that MailScanner and Spamassassin insert to determing proper delivery (think procmail).

I have the need to determine whether a message has attachments or if it is just simply text and html body parts without any attachments.

I can use code like this to do it I believe:

if ( $msg->isMultipart ) {
    foreach my $part ( $msg->parts ) {
        if ( $part->contentType eq 'text/html' ) {
           # and do a count because more than 1 means 1 is an attachment
        }
        elsif ( $part->contentType eq 'text/plain' ) {
           # and do a count because more than 1 means 1 is an attachment
        }
        else {
           # Means there are attachments right?
        }
    }
}

But it seems like an unneccessarily heavy approach since MailScanner has already parsed and analyzed the message prior to this step. The ideal solution for me would be to have a configuration line MailScanner.conf that would allow me to turn on "AddAttachmentsCheckToHeader" or something like that and MailScanner could add a header like: X-MailScanner-HasAttachments: Yes or something similar. I don't think this would take much to do and I don't think it would require much (if any) additional overhead for MailScanners processing since it already has the message parsed.

Something like this would be very useful to a number of applications that custom deliver mail based on different attributes that they need to parse from the header so I don't think this is just something that would benefit my use-case.

Any thoughts would be greatly appreciated and if there is already a way to do this that I am just missing... please let me know. 

Thanks,

Drew
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