Before you peek, see if you can solve this old chestnut:

  • Eudora: “…conflict with WorldMail 3’s ability to use SMTP authentication. Other issues may include, receiving multiple copies of the same message in your customers mailboxes…”
  • Exim: “I am using Exim 4.10 on OS X Server 10.2.2. I cannot get relaying with SMTP_AUTH to work…”
  • IBM Lotus: “…inbound SMTP server fails to receive email from the Internet. Telnetting to the Domino server’s Port 25 fails with no definitive error message.”
  • Microsoft: “I have a newly installed Exchange Server 2000 behind my Pix and did receive an error from a mail client when trying to connect to the Exchange server…”

While our answer has been posted here since September 2004, you’ll find a concise response we’re not allowed to run here.

Did you get the right answer? Count yourself among the old dogs who’ve seen all the tricks.