How to setup a remote mail spool?

[Walter Marchuk]

Having multiple mail spool servers is not very recommended unless there's 
a very urgent need.  The main issue is with file locking.  If you do a 
search for "file locking sendmail" on google, you'll see why.  We at EE 
department have 2 mail spool servers connected together through a SCSI 
interface with the spool disks in the middle.  The 2 mail servers 
communicate with each other through heartbeat and if the primary mail 
server goes down, the backup server takes over.  The heartbeat solution is 
for redundancy, if you are looking for load balancing then you should 
consider having mail gateway servers that queue mail.

Walter. 

On Wed, 22 Jan 2003, Richard Lotz wrote:

> I want to setup a secondary mail server (with an MX record of 20 for 
> example) that will spool mail for the domains I host in the event that 
> my primary server goes down.  I'd like to keep the other server as 
> close to the default OpenBSD install as possible, which means using 
> sendmail where possible.  That said if its a sufficiently simple 
> solution in another mailing I don't have much of an issue installing 
> something from the ports tree.
> 
> I've dug through the sendmail documentation with out many results.  
> Most of the references I've found to what I want to do was for spooling 
> based on UUCP.  It's very possible that I'm simply not looking for the 
> right things.
> 
> Anyone have any pointers to what documentation I should be referencing 
> to do this, or even some M4 rules to set this up?   Anyone know if this 
> will require a chance on the primary mail server to know about the 
> secondary?
> 
> -richard
> 
> --
> Richard Lotz
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