Email::MessageID - Generate world unique message-ids.
version 1.406
use Email::MessageID; my $mid = Email::MessageID->new->in_brackets; print "Message-ID: $mid\x0D\x0A";
Message-ids are optional, but highly recommended, headers that identify a message uniquely. This software generates a unique message-id.
my $mid = Email::MessageID->new; my $new_mid = Email::MessageID->new( host => $myhost );
This class method constructs an Email::Address object containing a unique message-id. You may specify custom host and user parameters.
host
user
By default, the host is generated from Sys::Hostname::hostname.
Sys::Hostname::hostname
By default, the user is generated using Time::HiRes's gettimeofday and the process ID.
Time::HiRes
gettimeofday
Using these values we have the ability to ensure world uniqueness down to a specific process running on a specific host, and the exact time down to six digits of microsecond precision.
my $domain_part = Email::MessageID->create_host;
This method returns the domain part of the message-id.
my $local_part = Email::MessageID->create_user;
This method returns a unique local part for the message-id. It includes some random data and some predictable data.
When using Email::MessageID directly to populate the Message-ID field, be sure to use in_brackets to get the string inside angle brackets:
Message-ID
in_brackets
header => [ ... 'Message-Id' => Email::MessageID->new->in_brackets, ],
Don't make this common mistake:
header => [ ... 'Message-Id' => Email::MessageID->new->as_string, # WRONG! ],
Casey West <casey@geeknest.com>
Ricardo SIGNES <rjbs@cpan.org>
Aaron Crane <arc@cpan.org>
This software is copyright (c) 2004 by Casey West.
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 Email::MessageID, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Email::MessageID
CPAN shell
perl -MCPAN -e shell install Email::MessageID
For more information on module installation, please visit the detailed CPAN module installation guide.