Sendmail?

Hello SuSE, I'm having real problems with sendmail now. The original message was received at Mon, 16 Aug 1999 18:17:24 GMT from root@[192.168.1.4] ----- The following addresses had permanent fatal errors ----- ----- Transcript of session follows ----- 553 kechara.org. config error: mail loops back to me (MX problem?) 554 ... Local configuration error It can't be a DNS error as nothing in the DNS area has changed (as primary DNS is off-site for kechara.org) - thus I can only think it is a direct problem with either sendmail.cf or one of its minion files. Can anyone give pointers? I'm particularly thinking it is the file containing the list of domains to accept mail for? What is that file called? Could it be anything else? Thanks Best Wishes, Lee Smallbone