Re: [Exim] MX host to bypass RBL...

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Συντάκτης: Pete Naylor
Ημερομηνία:  
Προς: Exim Users Mailing List
Αντικείμενο: Re: [Exim] MX host to bypass RBL...
On Fri, 30 Jul 1999, Philip Hazel wrote:

> On Thu, 29 Jul 1999, Greg A. Woods wrote:
>
> > Why do you think you need a backup MX host that's not within your own
> > administrative domain?
>
> There is one possible advantage, which is that all your pending mail
> ends up queued on a single host during an outage. This means that, when
> you do come back up again, you don't have a zillion hosts all trying to
> make TCP/IP connections at once. (This has been known to bring down
> machines not configured to cope gracefully with such a load.)


Another advantage might be that when your host is returned to service, you
ideally have the ability to cause a queue run on the backup MX - this
effects a quick delivery of all the backed up messages. Otherwise, it
might be several hours or more before all of those other remote mail hosts
run their queue and attempt delivery of the messages again.

-- 
/*-------------------------------------------------------------*
 * Peter James Naylor ## SysAdmin, Supernal Technologies, Inc. *
 *-------------------------------------------------------------*
       * pete@??? ## <http://www.supernal.net> *
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