Wrong email address insert into "TO" field

We have this internal user1, his previous internet mail address is user1@ag.bcd.ef in the domino directory.

Now he has transferred to another overseas branch, his internet mail address change to user1@zg.bcd.ef and was added into another public address book.

Problem:

A user compose and email, trying to send to user1 old internet email address (user1@ag.bcd.ef).

The message is written and then the ‘Send’ button pressed.

After this, the message is being sent, but the address automatically in the ‘To’ field changes to user1@zg.bcd.ef.

Very strange, anyone can advise any of the domino setting goes wrong?

Seems like it affect globally, not to 1 workstation only.

Thanks very much.

Subject: Wrong email address insert into “TO” field

Which domain is the sender in? That would determine with public addressbook is getting used. Also check whether the user has a contact entry in his LOCAL NAB.

Subject: RE: Wrong email address insert into “TO” field

The user now belongs to zg.bcd.ef this domain.

No entry in the Local NAB