Mail::Audit::KillDups - Mail::Audit plugin for duplicate suppression
version 2.228
use Mail::Audit qw(KillDups); $Mail::Audit::KillDups::dupfile = "/home/simon/.msgid-cache"; my $mail = Mail::Audit->new; $mail->killdups;
This is a Mail::Audit plugin which provides a method for checking and supressing duplicate messages; that is, mails with message-ids which have been previously seen.
killdups
Checks the incoming message against a file of previously seen message ids, ignores it if it's already seen, and adds it if it hasn't been. $Mail::Audit::KillDups::dupfile contains the name of the file used; if you don't set this, it will be .msgid-cache in the current directory. (Probably your home directory.)
$Mail::Audit::KillDups::dupfile
The data in $Mail::Audit::KillDups::dupfile will be treated as a ring buffer, where the end of the buffer will be delimited by two newline characters. When the file size exceeds $Mail::Audit::KillDups::cache_bytes bytes, the message id will be written at the beginning of the file. Old message ids in the file will be overwritten. The default cache size is 10000 bytes, which is enough space for about 200 message-ids.
$Mail::Audit::KillDups::cache_bytes
The semantics are tortured; the return values are as follows:
false - not a duplicate +1 - an error occured during dupcheck -1 - message is a duplicate
Simon Cozens
Meng Weng Wong
Ricardo SIGNES
This software is copyright (c) 2000 by Simon Cozens.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Mail::Audit, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mail::Audit
CPAN shell
perl -MCPAN -e shell install Mail::Audit
For more information on module installation, please visit the detailed CPAN module installation guide.