Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a central office site and I would like to know if it is considered acceptable to install Exchange 2010 CAS/Edge-Transport roles on VPS(s) in external datacentre(s) with a VPN back to our HQ where our mailbox and hub servers are.

My main goal is to have mail queued should the main site go down due to a local ISP failure.

Would there be any issues with this design and anything to be aware of?

share|improve this question
up vote 0 down vote accepted

There are plenty of SMTP-Backup providers out there. Use one of these if you only want to "queue" mails.

If you want to pursue your idea of an own server/VPS, then just use the EDGE-Transport role on the VPS, and not CAS, as CAS will not work anyway if it has no connection to the Mailbox server.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.