On Fri, 2009-12-11 at 18:02 -0500, Tony Nelson wrote: > there is no requirement that a > domain have an A record to exchange mail True, but there are plenty of mail servers (including sourceforge.net) that verify DNS information by back connecting. The domain therefore has to either have an A record, or an MX record pointing to a server that does have an A record, and the server the MX points to (or A if no MX) must be reachable on the SMTP port. We have found this out because we modify all MX records to point to our gateway, and we've had people send mail out from machines we weren't told were mail originators (and therefore they have no MX), and since the SMTP servers on these machines are not reachable from outside, mail servers like sourceforge.net refuse to accept mail from these hosts. So it is possible to have your outgoing mail rejected due to DNS inconsistencies. --Greg -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
