Re: [cobalt-users] MX Records and failover servers

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Thursday 23 May 2002 02:33 am, cobaltusers@xxxxxxxxxxxxxxxx wrote:
> On Wed, May 22, 2002 at 08:43:23PM -0400, Jay Fesco wrote:
> > Jeff - Thanks.  That's exactly what I needed.  I need it to sit in queue
> > on the Raq until the primary (external) mail server is available, so I'll
> > leave the field blank.  In an emergency (i.e. Primary server is going to
> > be down for hours) I will populate the Email Server field with
> > 'mail2.whatever.com' and just deal with the 'email staying on the server
> > if originating from the website' issue.
>
> Does this mean that the primary mailserver can send an ETRN message to the
> raq, and the raq would respond to this by sending the messages in its queue
> to the primary mail server?
>

The explanation is for a RaQ.
You just have the secondary mail server relay for the domain.
Thus when the primary is not available the secondary will queue messages for 
the primary.
The primary needs two MX records one for primary and one for secondary. 
Incoming mail will be sent to the secondary when the primary is offline.
When the primary comes back online the secondary will send all the queued 
mail
-- 
Gerald Waugh 
http://www.frontstreetnetworks.com :: Phone. [011] 203.785.0699
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