Access Denied when using "From" another mailbox

[Guest]

I use Microsoft Office 2003 on a Microsoft Exchange 2003 server. Until today
when I logged into another mailbox, I could send as a variety of other
accounts. I would use the "From" field in mail and put the display name of
another Outlook account in the from. NOw when I click send, it says I don't
have permission to send as that user. This happens even if my own name is in
the From field. None of my permissions changed, it just changed after I
logged into another mailbox on the server. My original account was migrated
from Exchange 5.5. Please help as I have to send mail from multiple
mailboxes and do not want to login to each of them.

Thanks

 

[Brian Tillman]

No permissions when sending "from"" <No permissions when sending "from <No

I use Microsoft Office 2003 on a Microsoft Exchange 2003 server.
Until today when I logged into another mailbox, I could send as a
variety of other accounts. I would use the "From" field in mail and
put the display name of another Outlook account in the from. NOw
when I click send, it says I don't have permission to send as that
user. This happens even if my own name is in the From field. None
of my permissions changed, it just changed after I logged into
another mailbox on the server. My original account was migrated from
Exchange 5.5. Please help as I have to send mail from multiple
mailboxes and do not want to login to each of them.

The new account doesn't have permission to the other mailboxes.

 

[Guest]

This is not a new account. It was migrated to Exchange 2003 over a year ago.
The only thing I did differently before having this problem was to login to
a new mailbox. I cannot even have my own name in the from field without
getting a permission problem!!!