>There is no MX RR for mail.imc.org, but it has an A and an AAAA RR: Right. Since there are no addresses [EMAIL PROTECTED] and no mail is sent with a @xxx.imc.org address, that's how it should be. Depending on how Paul has his server set up, mail to addresses like that might be rejected quickly, might return a DSN, might time out after a week, might accidentally be mapped to the corresponding [EMAIL PROTECTED], or might go into a black hole somewhere.
This is exactly the situation that works better without implicit MX. R's, John
