I have been informed that my mail system is "incorrectly" denying mail relaying. It is to my understanding that the ip's of users should be allowed to relay mail, anything else should never have to--which is how I currently have it setup. One of my users is on a mailing list and the list admin snet me a message saying that I needed to fix my configuration. The admin is saying that whenever any message from the mailing list is sent to my user, it results in: 553 MAIL RELAY TURNED OFF He he stating that on his end, when sendmail has more than one e-mail address in a header with a mail it has to send, it will attempt to relay everything after the first address. Correct me if I'm wrong, but this doesn't seem to be right to me. Why should my mailserver be taking over his mailserver load? He is implying that my setup is wrong based on this comment from him: --- Per the RFCs, relays which include at least one address to the host should be allowed through. Relays which don't, should be validated via a method such as POP password before SMTP. Denying relaying to stop your server from being used as a spam source is not a recommended solution according to the RFCs because so many legit sources (majordomo being one) expect a certain behavior. --- Other mailing lists don't seem to have this problem, with my qmail mail server, and other mail servers I run. Which method is the correct? Thanks. -Eric
