eliminate-dups
Reads an email message on standard input and calculates a fingerprint based on the mail headers. If the fingerprint already exists in the hashfile, then the message is a duplicate. If the fingerprint does not exist, save the fingerprint in the hashfile and deliver the message.
Create a ~/.qmail-maildir file
./Maildir/
Then add the following lines to your ~/.qmail file
| eliminate-dups hashfile &user-maildir
The forwarding to the user-maildir address ensures that if delivery to the Maildir is deferred, eliminate-dups will not be called a second time (which would result in a lost message).
Copyright (C) 2007-2008 Len Budney
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
