On Fri, Feb 21, 2020 at 06:29 Joe <j...@jretrading.com> wrote: > On Fri, 21 Feb 2020 06:00:14 -0600 > Tom Browder <tom.brow...@gmail.com> wrote:
... > > As I understand it, a mail server has to use smtp to physically > > transfer mail between physical hosts and that requires one name that > > will resolve to an IP. Even if the server is hosting multiple > > domains, the mail for each still has to use the one "mailname" for > > transport. > > Not really, you can have an A record for each domain, with the MX > record for each domain pointing to its 'own' A record. The only common > feature must be the IP address that the A records point to. > > You may well have only one PTR record for the address, although > multiple PTRs on one address are valid, but not many ISPs make provision > for that. > Interesting--I would prefer that. So with all mail stuff on one server, I can have each domain's MX record point to its own mail server. And I do have control of the PTR record. I just need to ensure everything resolves to the correct host IP. So how does all that jibe with the single name required by OpenSMPTD? Thanks, Joe. -Tom
