I have this Exchange 2003 SP2 distribution list. Some of the members of the list are external users with an external email address (yahoo, AOL, Comcast some other companies etc). Every time someone in the distribution list send a mail, the mails to the users at Comcast bounced back with the following error message:
Arrival-Date: Wed, 8 Nov 2006 15:56:27 -0500
Diagnostic-Code: smtp;554 invalid data encoding [LF.CRLF]
X-Display-Name: my name
Is there any particular reason why those users cannot receive emails from the distribution list ?
What does invalid data encoding [LF.CRLF] means anyway?
Any help will be appreciated