Hmmmm... Are you sure you actually get a message out of your Inbox, so that $MsgTxt isn't empty ?

Just insert 
print Dumper( $MsgTxt );

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where that assignment is and you should know. I've noticed you're always looking fo the newest unseen message - maybe you just have run out of 'amunition' and there is no more unseen message to cope with?

Maybe it's better to search an message that you know for sure that exists and retrieve it during testing via uid, like 

my $MsgId = $imap->search('uid', '257283')->[0];

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In reply to Re^9: mail attachment extraction by Krambambuli
in thread mail attachment extraction by phocean

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