Hello, I use Exchange 2007 and I would like to know if there is any way to remove a Specific SMTP address ending by an accepted domain that we do not use (almost not anymore...). The thing is that I have mailbox, mailuser and mailcontact I wish to modify. Eg: get-mailbox -identity User1 | ft emailaddreses --> user1@company.com and user1@priordomain.com get-mailuser -identity User2 | ft emailaddreses --> User2 : user2@company.com and user2@priordomain.com I would need to remove the *@priordomain.com for user 1 and 2 It should read as: get-mailbox -identity User1 | ft emailaddreses --> user1@company.com get-mailuser -identity User2 | ft emailaddreses --> User2 : user2@company.com Does anyone whould know how to ran that change??

Try using admodify (http://admodify.codeplex.com/) , its great to do bulk changes and if you mess something up you can quickly undo what you just did. http://www.msexchange.org/articles/ADModify-Change-Exchange-Specific-AD-User-Attributes.html DJ Grijalva | MCITP: EMA 2007/2010 | www.persistentcerebro.com