anant--- wrote: > For a domain, we are finding in logs that, for most of the mails, > mails are getting delivered to a server of remote domain having lower > priority MX record. For some mails, the mail is getting delivered to > higher priority MX record server even though lower prioirity MX recod > is reachable (we assume). How do I debug to prove that, at that point > of delivery, lower priority MX record server is not reachable or > unable to deliver to lower priority MX record server?
I read that and it is ambiguous to me if you are looking at the sending side wanting to know why your server is sending to the lower priority MX relay /OR/ if you are looking at the server side wanting to know why you are receiving mail on the lower priority mx relay. This is an important difference in the question and therefore in the responses. In either case as long as multiple MX relays are configured then mail will be sent to both and both must be fully configured to receive mail for the domain. This includes configuring relay_domains and relay_recipient_maps correctly. There is very little reason to configure multiple MX relays in the present age and state of Internet connectivity. If having multiple MX relays causes problems or confusion then reducing to exactly one where everything is simplified should be sufficient for all but the largest of email handling sites. Spammers often target lower priority MX relays with the expectation that they will be misconfigured. Bob _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
