Load balanced SMTP servers

October 28, 2008

We have 3 SMTP servers. Several internal apps use these for relaying. Most

of these apps only allow for one SMTP server when sending out alerts. If the

server the app points too is unavavailbe then the apps can't send out emails.

Can these be placed behind a CISCO load balancer? Is it supported? Are

there any caveats?

October 28, 2008

Re: Load balanced SMTP servers

"Joe Brown" <JoeBrown@discussions.microsoft.com> wrote in message

news:3DA61D2A-29A3-4B35-83D0-C68372EBE15D@microsoft.com...

> We have 3 SMTP servers. Several internal apps use these for relaying.

> Most

> of these apps only allow for one SMTP server when sending out alerts. If

> the

> server the app points too is unavavailbe then the apps can't send out

> emails.

> Can these be placed behind a CISCO load balancer? Is it supported? Are

> there any caveats?

Don't know anything about a CISCO load balancer

Barely know anything about Windows NLB

But...

You use Windows NLB (Enterprise Edition of Server OS).

Mail enabled applications don't use the IP# of the individual

servers,...they use the IP# of the NLB cluster. The "IP# of the NLB"

cluster is always the "IP# of the NLB" cluster no matter what machines are

dead or alive within the cluster.

The CISCO product probably works on the same prinicple,..dunno.

--

Phillip Windell

The views expressed, are my own and not those of my employer, or Microsoft,

or anyone else associated with me, including my cats.

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