On Tuesday, March 8, 2016, Curtis Villamizar <cur...@orleans.occnc.com> wrote: > Tom, > > I've been following this thread and also not clear on your > objectives. See inline. > As Viktor pointed out, look at the examples. Your home machine is a > "null client". Your remote server is not a "null client" but if set > up that way then you would get "connection refused". > > You need to instances of smtpd. One on port 587 (MSA) and a mail > transfer agent (MTA) on port 25 which is where the MX record point to.
Okay, Curtis,that's where the old documentation I'm used to breaks down. I don't remember seeing any reference to an MSA before (but now I see it--the Postfix books need updating!). That helps greatly with my understanding of what I need. I assume my use of the term "smtp client" translates to the MSA. Having the multi-instance Postfix seems to fit my requirement precisely (although I'm not sure yet that I need three instances--that's seems to be overly complex). I've browsed the multi-instance man page. Given all info so far. is this the right and doable path: I should be able to set things up, all on the remote server, with TWO Postfix instances: the null client (MSA) and the other the MTA. With the proper configuration I should be able to access the MSA programmatically from my local host as well as the remote host. Then I can use Mailman 3 with the MTA for my mailing lists. I can use TLS and SASL for authentication between the MSA and any external client. How does all that sound? Thanks for the continued help, Curtis. Best regards, -Tom P.S. In the meantime I'm going to take Viktor's advice to see if I can get the path from my local host to the remote server okay.
