What happens if I point an MX record to the wrong mailserver?

[Barry Margolin]

In article <btc9s4$1c6d$1 at sf1.isc.org>,
 mljohns at iname.com (Myron Johnson) wrote:

> I was wondering what happens if I do the following? 
> ----------------------------------------------- 
> 1) Create a new domain, "junk.com". 
> 
> 2) Point the DNS MX record for Junk.com to my mailserver at
> E-Rice.Net.
> BUT...The domain name at E-Rice.Net is "mydomain.com". 
> 
> 3) Create a mailbox on my mailserver named "test" (test at mydomain.com) 
> 
> 4) Send mail to test at junk.com 
> ----------------------------------------------- 
> Will the mail be received into the "test" mailbox at "mydomain.com",
> or will it be rejected?

It depends on the mail server software, so you should ask in a newsgroup 
for that software, not in the BIND group.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA