[aklug] Re: Postconf review

From: Tim Johnson <tim@akwebsoft.com>
Date: Tue Sep 22 2015 - 16:53:11 AKDT

* Kevin Miller <atftb2@alaska.net> [150922 16:49]:
> On 09/22/2015 03:46 PM, Tim Johnson wrote:
> > mail.tj49.com and mail.akwebsoft.com are (I hope that I'm using
> > the right word) aliases for host266.hostmonster.com
> >
> > What would you do to correct this?
> > Should I set $myhostname as host266.hostmonster.com ?
> >
> > thanks for the reply
> > -tim-
>
> I would contact hostmonster and ask them to set the reverse record to
> point to mail.tj49.com.
>
> If they don't want to do that, then setting $myhostname is probably your
> best bet. If they will change it, you need to pick which hostname you
> want to use.
>
> This is important mostly when you send mail. If you send to one of the
> email servers I run at work for instance, it will look at the hostname
> your server posts, and do a DNS lookup on it. It will then take the IP
> address that is returned and do a lookup on that. If they don't match,
> you get rejected. Not all email admins are as pigheaded as me, but it's
> a pretty common way to run a server.
>
> So long story short, you need to decide what name you want your email
> server to use when it's serving up mail, and make sure that the pointer
> record (reverse record, i.e. IP address) points to the cname you want to
> use.
>
> Note that the "From" and "Reply to" domains don't have to match the
> domain of the mail server. My work email is sent as domain juneau.org.
> The mx host has a domain name of ci.juneau.ak.us however. So you can
> send as tim@akwebsoft.com or tim@tj49.com. The critical part is that
> the forward and reverse records match.
>
  Thanks Kevin. I will probably have to have to change $myhostname
  since it is a shared server.
  cheers

-- 
Tim 
http://www.akwebsoft.com, http://www.tj49.com
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Received on Tue Sep 22 16:53:33 2015

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