As Kanji suggests, use Net::SMTP. I used the following code and it worked for the three messages I had in my pop3 account but I haven't extensively tested it: 
# ...

use Net::SMTP;

my $smtp = Net::SMTP->new(Debug   => 1,
                          # other stuff
);

# ...

for $msg_id (keys(%$Messages)) {
    print "Retrieving Msg: $msg_id\n";
    my $MsgContent = $pop3->get($msg_id);
    # Here's where I'd like to forward it on..
    $smtp->mail($resentby);
    $smtp->to($target);
    $smtp->data();
    for (@$MsgContent) {
        $smtp->datasend($_);
    }
    $smtp->dataend();
}
$smtp->quit;

[download]
The debug mode will help pinpoint problems. If you get a "broken pipe" message, then one of your supplied arguments ($smtp->mail or $smtp->to) is most likely the culprit.

--Jim

In reply to Re: Getting Net::POP3 to grab mail then forward it on. by jlongino
in thread Getting Net::POP3 to grab mail then forward it on. by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.