Hi, All.. I have a user who has a permission on 2 mailboxes.( One on his own mailbox and second one for official purpose ). By mistake i deleted one of the mailbox ( Official One ) and his NT account too got deleted along with it. I created a second NT account with the same user name and associated that account to his original mailbox. But when i try to open his mailbox its not allowing me to connect to his mailbox giving me the error of permissions.. I know when i created his NT account its with new SID and may be for that reason its not allowing me to connect to his mailbox. May i know the solution for this prob.. I have Exchange 5.5 and NT4.0 Domain. Thanks in advance.. Regards, Sudhir Kaushal Network Engineer ( Hosted Team ) eGain Communications Pvt. Ltd. Pune.( Nasdaq - EGAN ) Hello - (+91 20) 4222812, (+91 20) 4228607, Ext - 132.