Re: Generating Message_id email headers

I would strongly recommend you look into getting the module installed, either locally into your account, or perhaps even by your hosting provider. See Yes, even you can use CPAN and local::lib. It's a pure-Perl module consisting of a single file, so in the worst case you could even just copy the file over.

And in the very worst case, note that the guts of the module Email::MessageID are actually quite short. Although as I said I strongly suggest getting it installed, if you really have no choice, here is a boiled-down version:

# Code derived from Email::MessageID 1.406 by Ricardo Signes
# http://cpansearch.perl.org/src/RJBS/Email-MessageID-1.406/lib/Email/
+MessageID.pm
use Sys::Hostname::Long qw/hostname_long/;
my @CHARS = ('A'..'F','a'..'f',0..9);
my %uniq;
sub create_mid {
    my $noise = join '',
        map {; $CHARS[rand @CHARS] } (0 .. (3 + int rand 6));
    my $t = time;
    my $u = exists $uniq{$t} ? ++$uniq{$t} : (%uniq = ($t => 0))[1];
    my $user = join '.', $t . $u, $noise, $$;
    return '<' . $user . '@' . hostname_long . '>';
}
[download]

You can replace hostname_long with hostname from Sys::Hostname if you don't have Sys::Hostname::Long installed.

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Re^2: Generating Message_id email headers by Anonymous Monk on May 18, 2017 at 23:18 UTC
I would strongly recommend you look into getting the module installed Why would he even consider such "work" when you can feed him the pieces he's missing pea by pea?	[reply]
Re^3: Generating Message_id email headers by haukex (Archbishop) on May 19, 2017 at 08:03 UTC
The module is pure-Perl, has no non-core dependencies, its core functionality is only those 11 lines of code I showed, and it's not doing anything magical or even all too complicated. Copying things over like that should be done very rarely, but in this case I consider it a pragmatic (but obviously not optimal) solution. "Nicht schön, aber selten."	[reply]
Re^4: Generating Message_id email headers by Anonymous Monk on May 19, 2017 at 09:44 UTC
Dont you think its better the OP take your word for it and go to CPAN to confirm himself? With his own spoon as it were	[reply]