Prevent outlook mailing bcc to old changed mail addresses

How can I prevent Outlook remembering old email addresses that I have changed
when I send a blind copy?

When using "To" or "cc" the message goes to correct receipient but blind
copies go to their original address recorded and not to any subsequent
changes.

Thanks in anticipation

All mail sending fields would use the same data source, so what you describe
is not plausible.

You have not provided any information. Provide enough detail for us to tell
what you're doing. Include the precise steps by which you are entering the
names, your data source, your Outlook version and whether you're using
autocompletion and/or autoresolution.
--
Russ Valentine
[MVP-Outlook]
"MKF" wrote in message
...
How can I prevent Outlook remembering old email addresses that I have
changed
when I send a blind copy?

When using "To" or "cc" the message goes to correct receipient but blind
copies go to their original address recorded and not to any subsequent
changes.

Thanks in anticipation