Thomas Schulz <sch...@adi.com> wrote: > We are switching service providers and I understand that many email SPAM > prevention systems insist on the reverse DNS matching the forward DNS. > If I have two A records for our mail server and the reverse record matches > one of them, will that be good enough. Or will the fact that the other A > record does not match cause trouble.
I would suggest setting up a separate name with matching forward and reverse DNS for each IP address. The existing name can be an alias pointing at both addresses. For example have a look at the setup for ppsw.cam.ac.uk which is our central mail relay. (The name is a relic from the days of the JANET coloured book protocols and a grivously hacked fork of MMDF.) Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ Forties: Northwest 3 or 4, veering north 4 or 5, increasing 6 later in east. Slight, becoming moderate in east. Mainly fair. Moderate or good, occasionally poor. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
