myname@somewhere.com.
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The address is in the form:

myname@somewhere.com.

Are you sure?

I'd be interested in seeing the STDERR of this (run as a cron)...

use Data::Dumper;
$sender->MailFile(
    {to => $addr,
     subject => 'HP Notify Attachment',
     msg => "The attachment sent courtesy of $sname.",
     file => $fname
     });
warn "Unexpected addr: '$addr'" 
   unless ($addr eq 'myname@somewhere.com');
warn Dump($sender);
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As I recall, the only thing Mail::Sender ever does to a 'to' addr, is replace sequences of whitespaces with a single ", " -- so I would guess either you aren't including myname in your $addr properly, or you have some whitespace seperating if from @somewhere so your SMTP server winds up seeing:

To: myname, @somewhere.com
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Using the following code:

$sender->MailFile(
   {to => $addr,
    subject => 'HP Notify Attachment',
    msg => "The attachment sent courtesy of $sname.",
    file => $fname
    });
warn "Unexpected addr: '$addr'"
unless ($addr eq 'tompkic1@universalleaf.com');
    print "Addr is $addr\n";
    warn Dumper($sender);
exit;
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I got the following output:

Addr is tompkic1@universalleaf.com
$VAR1 = bless( {
                 'sin' => 'ÇV',
                 'client' => 'localhost',
                 'from' => '@universalleaf.com',
                 'replyaddr' => undef,
                 'boundary' => 'Message-Boundary-19990614',
                 'fromaddr' => '@universalleaf.com',
                 'proto' => 6,
                 'debug' => 0,
                 'multipart' => 'Mixed',
                 'port' => 25,
                 'subject' => 'HP Notify Attachment',
                 'replyto' => '@universalleaf.com',
                 'idcounter' => 0,
                 'error' => -5,
                 'smtp' => '150.150.199.86',
                 'socket' => bless( \*Symbol::GEN0, 'FileHandle' ),
                 'to' => 'tompkic1@universalleaf.com',
                 'smtpaddr' => 'ÇV'
               }, 'Mail::Sender' );
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Thanks, killraven

Blind I am. It was the from address that was messing up. The Dumper trick opened by eyes. Thanks hossman. Thanks you all for your help. killraven

Have you tried to escape the @ ? Like: myname\@somewhere.com I've noticed alot of scripts require the escaping if the address is in double quotes. It's worth a try.