How to get Gnus to send multiple emails

[Phillip Lord]

I'd like to have gnus send a single email to multiple addresses; I am
sending an annoucement to several email addresses, most of which will
not accept multiple "To:" lines. Currently, I just do this with a mass
cut-and-paste and send the email several times.

Is there a way to automate this -- I'd like to store the email addresses
in BBDB, and send them in one go.

Phil