On Mon, 30 Sep 2002, Mark Tilden wrote: > 2. I created a second test list with no spaces in the name. It > works better. However, whenever I send mail to the list server, I > get a "loop back" bounce message from sendmail. Here's the message: > > > This is the Postfix program at host gateway.tildens.org. > > > > <[EMAIL PROTECTED]>: mail for gateway.tildens.org > > loops back to myself
That's a DNS issue. Most often when the "loops back to myself" error shows up, the MX host for the target domain resolves to 127.0.0.1 which clearly creates a loop. Sometimes, a correctly configured MX record will still create this problem if the MTA has not been configured to recognize local mail as such and deliver it differently than other mail it is relaying. i.e., if a given MTA has been configured to relay -everything- based solely on MX records and it discovers that the relay for a given domain is -itself- (even if the MX record does not point to "127.0.0.1") it might issue the "loops back to myself" NDR in that case, too. (Typically, an MTA for a given domain is configured to either deliver mail for that domain locally (i.e., to a mailbox) or to use a specific host as the next-hop relay for that domain (i.e., don't look it up in DNS).) While troubleshooting, remember that the view of DNS from the system in question may be very different from the view of DNS from some other system, even a "neighbor". Take a careful look at things; you claim that bounce message comes from sendmail, but the NDR you provided is from a Postfix MTA. Did you mean "the MTA" instead of "sendmail"? If not, the environment in which you are operating may be quite different from what you believe it to be. HTH - Andrew ---------------------------------------------------------------- Mailman Administrator - http://www.tux.org/mailman/listinfo/ ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/
