[Mailman-Users] Response: 450 Host down

Joni Seth JSeth at eastech.org
Wed Dec 29 14:15:40 CET 2010

I have set up Mailman and Postfix, following the instructions to the letter, and although Mailman will send out email fine, when I, as the administrator, try to send my email to the list I have created, I get the following error: Response: 450 Host down (myserver.mydomain.org). I am quite new to this and am not a Mailman or Postfix expert by any means, but if someone could point me in the right direction, I would be very grateful. Thank you.

Eastern Center for Arts and Technology

CONFIDENTIALITY NOTICE: This E-Mail is intended only for the
use of the individual or entity to which it is addressed and
may contain information that is privileged, confidential and
exempt from disclosure under applicable law. If you have
received this communication in error, please do not print,
disclose, copy, retain or redistribute it. Please delete the
original message after notifying the sender by E-Mail at the
address shown. Thank you for your compliance.

More information about the Mailman-Users mailing list