Nibbler, both you and I know that email list was not a personal list made by a member of staff. I never gave my email address to anyone other than OSFC membership form, that list was copied and taken to BFC. I know the person who copied it and the exact day it was done, but lets leave that there and not dwell on that.
Anyway, no matter how BFC obtained the list, it is still illegal to send spam emails to people with fines up to £5000 for each offence. The current law requires people to opt IN to an email list, you cannot spam and then say people can opt OUT. Therefore I suggest you modify your current email list to include only your BCF members who have given permission to be contacted by email. It is not my responsibility to opt out.
Regards