[Mimedefang] Many many MX records

[John Stewart]

Gary Funck wrote:

>  
>
>>-----Original Message-----
>>From: David F. Skoll
>>Sent: Wednesday, January 14, 2004 5:37 AM
>>To: mimedefang at lists.roaringpenguin.com
>>Subject: RE: [Mimedefang] Many many MX records
>>
>>
>>On Tue, 13 Jan 2004, Gary Funck wrote:
>>
>>    
>>
>>>How about
>>>    Domain.com      IN MX 100       spamtrap.domain.com
>>>      
>>>
>>But what if all your other MX records are down or unreachable?  You'll
>>blacklist a whole bunch of innocent mail.
>>
>>    
>>
>
>My thinking was that this would be virtual host, resident on the
>same physical system. Thus, if the main MX isn't working, due to hardware
>failure neither is the backup. Then, as I thought about this some more,
>I realized that the main MX could be broken due to software or operator
>failure, and that would be bad.
>
>  
>
A couple of years ago we had a couple of incidents where our main 
Solaris mail
server would stop listening on its primary interface, but virtual 
interfaces on the same
physical interface were still functional.  This turned out to be due to 
a bad kernel patch.

>  
>

-- 
--
John Stewart -- Computing and Communications Services, Carleton University
Internet: jstewart at ccs.carleton.ca                       613-520-2600x3707
"measure twice, cut once"