Anyone have any idea what could be causing this:
-----Original Message-----
From: Webshield SMTP V4.5 MR1a Mail Service [mailto:Webshield SMTP V4.5 MR1a Mail Service]
Sent: Tuesday, April 30, 2002 4:02 AM
To: [EMAIL PROTECTED]
Subject: Returned Mail: Error During Delivery
------ Here is your List of Failed Recipients ------
<[EMAIL PROTECTED]>
Destination mail server returned error code 250.
-------- Here Is Your Returned Mail --------
Mailman is running on Slackware Linux using Sendmail 8.11. As near as I can tell, sendmail's error code 250 means that everything was a success. I don't get it.