Good day, In our environment we have usernames that start with first initial of the first name + full last name (ie, Jim Taylor = jtaylor) We have a case where severals users decided to change their last names. I understand this can be easily done in ADUC under User properties. However, how will this effect the Exchange 2007 since it is tied through AD? The idea is to keep the old email address for a month or two to allow transition. So if Jim Taylor now wants to be Jim Johnson, we need to keep: jtaylor@email.com and forward it to jjohnson@email.com. I theoretically know how this is going to work but dont want to take the risk to screw something up. Is there a proper process for this? Many thanks for your help,

Use the Exchange tools to change the person’s name; either via the GUI or console. This would change my logon name and samaccountname from mcrowley to msmith: Set-User -SamAccountName 'msmith' -UserPrincipalName 'msmith@demolab.local' -Identity 'demolab.local/DemoLab Users/Mike Crowley' Once you do this, the old name will be an additional proxy address, however all new mail will be sent out as my new name (depending on how you've got your EAPs configured). If you use ADUC the address will not be updated, but you could manually follow up with something like this Set-Mailbox -EmailAddresses ''SMTP:msmith@domain.com','smtp:mcrowley@domain.com' -Identity 'demolab.local/DemoLab Users/Mike Smith' (where the capital SMTP is my new primary address) Mike Crowley Check out My Blog!