Hi everyone,This may be a dumb question, but I want to make sure I've got all my bases covered.I've installed exchange 2007 and have functioning "internal" email. I've installed my spam filter solution and setup my firewall to allow inbound SMTP traffic to the spam appliance. I have not set up any connectors until I know for sure what's going to happen.Here's what I have - we've always had email hosted by Speakeasy (www.speakeasy.net) via IMap4 or POP3. Now we're installing exchange.I have 250 users, and I don't want to turn them all on at once. I want to turn them on a group at a time.What's the recommended way to do this? The email domain is the same "user@domain.com". I was thinking that in my hosted MX records I could set the "speakeasy" email servers to priority 20 and add my exchange as priority 10, so as account were NOT found on exchange they would then try the speakeasy servers. Anyway, and advice is greatly appreciated. I just want to do it the best way possible you know? :)Thank You!Mark Mark L.

Hi Mark,MX records don't work in that way, as per priority 10 mails will be delivered to Exchange but account is not available in Exchange then it rejects the mail to sender and doesn't try to priority 20 MX record of speakeasy. This different priority MX records work when lower priority MX record is not reachable at all then mails will be delivered to next higher priority MX record but you have different case, lower priority MX record is reachable.You need to configure your Exchange 2007 to route message for shared address space @domain.com as per below article. Check it for further information and step by step instructions.How to Configure Exchange 2007 to Route Messages for a Shared Address Spacehttp://technet.microsoft.com/en-us/library/bb676395.aspxAmit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Ah, awesome. Thank you for your feedback!Mark Mark L.