I tried to reply to a message this morning and got the error below. WTF?
------------------------------------------------------------------------ - The original message was received at Mon, 13 Feb 2006 08:57:33 -0700 from [165.221.20.101]
----- The following addresses had permanent fatal errors ----- kclug@kclug.org (reason: 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1))
----- Transcript of session follows ----- ... while talking to mail.illi.net.:
RCPT To:kclug@kclug.org
<<< 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1) 550 5.1.1 kclug@kclug.org... User unknown