in reply to Re^4: Trap the error msg from Mime::Lite
in thread Trap the error msg from Mime::Lite

I'm stupid and didn't read your message, sorry!

I think the string you see comes from the sendmail program directly. Maybe you can close STDERR in the hope that that will shut up the sendmail error output. Otherwise, you could skip using sendmail and talk SMTP directly, but not every machine is set up for that either:

$msg->send('smtp','some.host.local');