On Sun, Aug 16, 2015 at 12:23 PM, Viktor Dukhovni <postfix-us...@dukhovni.org> wrote: > On Sun, Aug 16, 2015 at 11:44:03AM -0500, Tom Browder wrote: >> Okay, then I guess I should pick one of the virtual hosts as the domain >> name and add some arbitrary host then. Does that mean it is then a "real" >> server and should not be treated as a virtual domain? > > Nothing of the sort. Just give the machine a sensible hostname > that will be used as its smtp_helo_name and is the sole name in > its PTR record.
Okay, now assuming my server IP address is 1.2.3.4, do the following DNS records appear reasonable? # begin DNS records for IP 1.2.3.4 A.tld. IN A 1.2.3.4 B.tld. IN A 1.2.3.4 www.A.tld. IN CNAME A.tld. www.B.tld. IN CNAME B.tld. mail.B.tld. IN CNAME B.tld. 4.3.2.1.in-addr.arpa. IN PTR A.tld. 4.3.2.1.in-addr.arpa. IN PTR B.tld. A.tld. IN MX 10 mail.B.tld. B.tld. IN MX 10 mail.B.tld # end DNS records for IP 1.2.3.4 Thanks. -Tom
