using bcc in outlook express

[Elmer]

When sending an email message to a number of people in outlook express using bcc how do you get it so it says undisclosed recipients or something similar in the to field rather than being blank (which causes it to be seen as spam by some isps).

I know I could also send it to myself, but "undisclosed recipients” or something similar would look less odd and confusing to the recipients.

Thanks for any help.