[Nolug] Backup mail hosts?

As with many small companies, at times our mail server goes down
(repairs, etc) and we end up getting deferred mail destined for us.
That would be fine, but a lot of people (and automated processes)
don't like getting the Delayed Delivery messages.

To counter that, we are interested in a backup mail service. There are
some offerings from companies that provide DNS service (e.g.,
zoneedit.com). There may be others. Does anyone have suggestions,
comments, or criticisms about these services?

We do around 1-2GB of mail a month, so we would like to keep costs
down.

Suggestions welcome!

---
Puryear Information Technology, LLC
Baton Rouge, LA * 225-706-8414
http://www.puryear-it.com
Author:
  "Best Practices for Managing Linux and UNIX Servers"
  "Spam Fighting and Email Security in the 21st Century"
Download your free copies:
  http://www.puryear-it.com/publications.htm
___________________
Nolug mailing list
nolug@nolug.org