Replace 
 
print "ERROR:  Could not authenticate user $user_id\n$!\n";

[download]
with 
  
print "ERROR:  Could not authenticate user $user_id\n$: ".$mail->messa
+ge."\n";

[download]
or equivalent.

In reply to Re^3: Error message not showing up from Net::SMTP by menolly
in thread Error message not showing up from Net::SMTP by sg

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