There is an existing Exchange 2007 account for user john.doe@example.com
If I want to create a Windows SBS 2008 Account for john.doe it tells me I cannot create it because user already exists.
I don't want the user to have 2 logins. Is there a possibility to create the user-account after the Exchange Account without deleting the exchange account.
Create new Windows Server User for existing Exchange Account
active-directoryexchange-2007user-managementuser-profilewindows-sbs-2008
Best Answer
Disclaimer, I'm not 100% sure how easy this is to do in SBS
Exchange 2007 does support this kind of thing, but you have to think at it a bit sideways. You WILL have to create a new user & mailbox, but you'll add rights to allow your actual user Full Control rights to that new mailbox. If they want to be able to send mail from the 2nd mailbox Outlook will need some tweaking as well, but the exact steps change from Outlook 2003, 2007, and 2010. I'm not sure this is useable if they're an IMAP user.
That'll get it created. Since you don't want to have accounts like this lingering, go to your user management and Disable this new user. Exchange allows delivery of mail to Disabled accounts.
Next is configuring Outlook to access it. The method I use:
Now the account is associated with their Outlook config. Doing Send As will require going in to Preferences (the exact steps vary from Outlook version to Outlook version) and turning on the "From:" field. This will allow them to select who to send mail as.