[BlueOnyx:11046] Why does mx record override Smart Relay host?

[Chad Bersche]

I posted on this some time ago, but didn't get any feedback, so thought 
I would try again.

I recently updated my DNS provider, and as part of that update, the DNS 
provider created mx host entries (i.e. mx.domainname.com) that pointed 
to their mail forwarding service (which I do use).  However, the odd 
thing is that after this happened, I noticed in my outgoing mail log 
that the relay host is now using mx.domainname.com rather than the Smart 
Relay host that I had set up (and which I want outgoing mail routed 
through at my ISP).

Why is sendmail using relay=mx.domainname.com (in maillog) when a 
different Smart Relay host has been set up?  This seems incorrect, 
especially since I have specified a smart relay host.  I've hacked 
around it for right now with a local DNS entry that points 
mx.domainname.com to the IP address of my smart relay host, but that's a 
true hack, and one that I don't think I should have to make.  I also 
need to keep the mx.domainname.com entries in my DNS so that my external 
mail fowarding/spam filter can process the mail before it routes to me...

Any help or recommendations very much appreciated!

   -- Chad