I have a few hundred mailboxes that have a custom address of notes:user@DomainI'd like to bulk remove this without affecting the other email addressesThank you.

Use ADModify.Net if you are using Exchange 2003.ORUse ADModify.net or PowerShell if you are using Exchange 2007.http://www.codeplex.com/admodifyAmit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

i guess i am not sure on how i would powershell this as i can't see the notes address is a csv dump.

Well, ADModify.net does the job easily with the help of GUI. However if you want to do it with powershellt then check below similar post, which is for different issue but the script can be used and you may need to do little bit of modification for users and for notes address...http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/fa94c2eb-3259-4788-883e-abeb5ed0956bAmit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

ADModify.Net worked flawlessly! Thanks

what string was used in the "Custom" tab to remove the notes addresses? I did this before and even had it scripted, but it was so long ago I can't find the info.

I used the email addreses tab, under Remove Email Address, simply "notes:" without the quotes.