Need help with email redundancy

[edzillion]

We have had some email outages in the last few months and my boss is asking is it worth going with one of those email redundancy/filtering sites. The thing is, we have a backup server on a remote location, so I am pretty sure we can set something up with what we have already.

At the moment I have the top MX record pointing to my in-house server and the next entry for our dedicated (off-site) server in a data center. I was thinking that instead, we should have the first record pointing to the off-site server, which would save all emails and then forward them on to the in-house server. That way we would have backups etc. In the event of that server going down the in-house one would take over.

The off-site server is linux and the in-house is SBS. Is this possible, and are there any resources out there to help me?

[jledhead]

this is very possible. any mta will work, I prefer postfix. the only problem you may run into is a having your userbase updated in both locations. it will still work either way but would be better if you could access the same control list from the relay. just google postfix mail relay (or sendmail, qmail, exim) and you should find some guides. I have done this so (not in a remote location) so I can offer some additional help.l