UNIX hosts and MX "best practice"

[John H. Yates]

So it seems that there is no "best practice" on whether a mail host
should have a defined MX for itself or not. I would have thought that
it should, but am willing to leave them blank by default as our
new campus software does.

John

"John H. Yates" wrote:
> 
> What is considered "best practice" for UNIX hosts these days? To
> assign a UNIX host its MX record as itself, or to leave it unspecified?
> 
> I've observed that it falls back to the A record if you don't bother
> specifying it, but it makes "nslookup" MX queries look "different" than
> I am used to, and I was just wondering what current "best practice" is.
> 
> Thanks, John