Local mail exchange and remote website?

[Eric Shubert]

On 10/18/2010 07:55 AM, Lisa Kachold wrote:
> HI Tom;
>
> These guys are correct, your mail server is not exchanging any
> authentication but expecting it.
>
> WHM and Cpanel use different mail tools depending in what exactly is
> available and embraced/installed by your hoster.
>
> http://www.cpanel.net/products/cpanelwhm/features.html
>
> If you have it, use the WHM mail troubleshooter:
>
> http://www.webhostingresourcekit.com/flash/whm/whm10_x_mail.html
>
> Most web hosters use the WHM mail tool because of the many issues with
> insecure mail scripts cgi hacked.  This simply means that your server is
> sending mail FROM ITSELF (not necessarily for/to the domain) using WHM.
>
> 1) MX for your domain (so that your new server will be used for MAIL
> XFER [if you are already using another mail service and have a 0 or 1
> priority MX record, just add a second MX for your offsite mailer IP
> machinename (which MUST match the reverse in-addr-arpa IP address and
> name the server presents itself as PER the RFC)]
>
> http://www.gregrobert.com/mxsetup.php

Sorry Lisa, but I think you're off base here. If I understand Matt's 
situation correctly, he's having a problem sending email. MX records 
only come into play for receiving email. You can send all day long with 
no MX record(s) at all. ;) He shouldn't need to touch any DNS MX 
configuration. Of course, the destination/recipient domains would need 
appropriate DNS MX records.

> 2) Mailer to allow specific IP addresses to access and relay without
> authentication.
>
> If you find you are not using WHM, but have another mail server, it's
> going to be configurable within Cpanel or WHM also.
>
> This is generally in /etc/mail or /etc/postfix and is usually called
> *relay* something.  But refer to specific documentation for your mail
> transport tool.
>
> I.E. google "How do I configure relay hosts in postfix"  for instance.
> GoDaddy does have ssh or ftp.  You can change configuration files with
> ftp, where you generally would be vim editing the file and restarting
> the mail daemon.  Generally CPanel and WHM have tools to manage
> everything available on the server.
>
> I am familiar with setting up Cpanel and WHM on servers as well as
> working within them for various shops through the years.  If you have
> questions you can email or call me off list.
>
> So much of the specifics of your hoster are guessed by us, wouldn't this
> question best be crafted and packaged for their support email or process?
>

This part's right on. ;)

-- 
-Eric 'shubes'