Why wont this MX record work properly?

[TIM MOORE]

Sorry, I typed this up in a hurry.  The trailing dots are there!  I did
a dig on the name server for the MX record (and A record for
mul8.domain.us) and it is there.  Again, some email gets there some does
not.  
 
--------------------------------------
Tim Moore
DNS/Linux/Cisco Admin
ODJFS
>>> "G. Roderick Singleton" <gerry at pathtech.org> 2/24/2005 12:54:42 PM
>>>

On Thu, 2005-02-24 at 11:34 -0500, TIM MOORE wrote:
> Having some trouble with an MX entry.  Is this not a valid way to do
MX
> records (in the domain.us zone file)?
>  
> arete.domain.us   in  mx  10  mul8.domain.us
> mul8.domain.us   in  a  xx.xx.xx.xx
>  

Missing dots?
> 
> If we send emails to user at arete.domain.us from certain mail servers
> (Yahoo and Hotmail online accts) it works.  If we send from other
email
> accounts it doesnt work.  There is no actual zone file for
> arete.domain.us, it is just a "domain" to send email to.
>  
> Suggestions?
>  
> Tim M.
> 
-- 
G. Roderick Singleton <gerry at pathtech.org>
PATH tech