Request reverse dns mapping advice

[Tom Browder]

On Monday, September 5, 2016, John Levine <johnl at iecc.com> wrote:

> >1.  pick a primary domain from the list of virtual hosts (example2.com)
> >2.  use the "real" host name of the server (juvat.example1.com)
> >3.  the mail server name (mail.example1.com)
> >4.  the dns server name (ns2.example1.com)
> >5.  another domain from the virtual hosts list (example 3.com)
>
> Publish a PTR with the mail server name, forget about the rest of
> them.

...

Thank you, John, for the good advice.  I thought I had read that somewhere
but haven't been able to find it again.

On today's Internet, you want your mail server to EHLO with a name
> that has matching forward and reverse DNS with the server's IP.  If
> you don't, you look unnecessarily like a spambot.

...

A very good reason, indeed!

Thanks again.

Best regards,

-Tom
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