[aklug] Re: Postconf review

  Hi Royce :

  To clarify your advice :
  ## The following would be acceptable as a remedy?
  myhostname = host266.hostmonster.com

  thanks
  -tim-
* Royce Williams <royce@tycho.org> [150922 17:13]:
> As long as both your MX records and your source of mail have forward
> and reverse DNS that match, you should be fine. In other words, you
> shouldn't have to change anything other than the minimum work to make
> sure that stuff matches.
>
> Royce
>
> On Tue, Sep 22, 2015 at 4:53 PM, Tim Johnson <tim@akwebsoft.com> wrote:
> > * 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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-- 
Tim 
http://www.akwebsoft.com, http://www.tj49.com
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