[Remops] Postfix set up help

[Steve Crook]

On Mon, Apr 21, 2014 at 02:44:01PM +0100, Steve Crook wrote:

> Mail for that domain is delivered to a server called mail.inwtx.net
> with the highest possible priority (0).  I'd suggest changing that to 10
> so you have scope for over-riding it with a higher priority if you ever
> need to.  It's a minor issue though.
> 
> $ dig mail.inwtx.net +short
> inwtx.net.
> 95.85.35.251

Somebody considerably more knowledgeable than me just pointed out that
there is an error here.  DNS MX records must not be pointed at CNAME
records.  In your DNS you have:

mail.inwtx.net.         1794    IN      CNAME   inwtx.net.
inwtx.net.              1800    IN      MX      0 mail.inwtx.net.

You probably want to correct this by giving mail.inwtx.net an A record
instead of a cname. Like this:

- mail.inwtx.net.         1794    IN      CNAME   inwtx.net.
+ mail.inwtx.net.         1794    IN      A       95.85.35.251
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