From: Paul Robertson (probertspatriot.net)
Date: Sun Feb 01 2004 - 21:27:53 CST

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On Sun, 1 Feb 2004 gagelcnc.bc.ca wrote:

> What is everyone doing for a realtime fail over server?

If you mean "more than one place to accept mail," SMTP allows you to have
multiple MX hosts, and most places have two or three. It's not as
important as it once was, as most places will happily queue outbound mail
for a few days.

> Specifically we are wanting to have another server simply step in when
> our main email server is down. Does anyone out there have something in
> place? We currently have a windows based email server but may utilize
> a linux based one in the near future.

If you mean "POP/IMAP/MAPI" server, it's a little more difficult, as for
at least the open of those protocols, you really need to keep message
identifiers consisten, and handling deleted messages makes that really
difficult. Most places I know keep the mail spool on a mirrored drive and
back up regularly.

Paul
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Paul D. Robertson "My statements in this message are personal opinions
probertspatriot.net which may have no basis whatsoever in fact."
probertsontrusecure.com Director of Risk Assessment TruSecure Corporation

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