Best way to reroute some AD user emails

[onsetcomp]

Hello,

We are in the process of moving from FirstClass email server to Exchange 2007. I'd like to slowly move my users over in small groups. All users have a AD account and exchange email address even though their actual email (with the same address) still gets routed to our production FirstClass server.

1. If I switch the MX routing to go to the Exchange server how can I create a list of addresses to route to FirstClass instead of Exchange? I have set up my own FC acnt to forward my email to another internal domain I'm testing Exchange with, however I can't send mail back to people in FC from Exchange because it thinks they are on the local Exchange server already. This can also create mail loops.

We only have 130 users moving to Exchange I'm wondering if it is just better to make one huge switch and fix the zillion problems.

 

[Stevehewitt]

One huge switch mate. You can only do selective routing like that on a per domain basis rather than per mailbox. Once you have it configured how you think, create a few additional test accounts and use OWA to test out the internal routing. Once done, do the same with the Global Address Book, Distro groups etc. Finally test outbound emails are being send from Exchange OK (send to your hotmail/gmail etc. account). Last step of testing is to manually SMTP to your Exchange server (Telnet style) and send a mail to both a distro group and individual accounts.

If all works then get your Outlook clients working (if your using Outlook 2007 then it's easy with autodiscover - but test it first!) and finally change your MX.

All done - go and have a beer!

Good Luck,




Steve.

"They have the internet on computers now!" - Homer Simpson

 

[58sniper]

Yep. Like Steve says, do it all at one time. You said that everyone already has an Exchange account.

Make sure your public IP has the correct prt record. Configure the IMF features in Exchange to help reduce spam and other problems.

130 users is nothing. Make sure that they all have access to Outlook and let 'er rip.

Pat Richard, MCSE MCSA:Messaging CNA
Microsoft Exchange MVP
Want to know how email works? Read for yourself -

http://www.ietf.org/rfc/rfc2821.txt