Website Mailing List Extraction.

I need to send out a small newsletter for my upcoming site to church members via email from a mailing list on my regional church website. I need someone who can extract the that data from the site. The site has a contact form and sign up to newsletter section (if these help). I also have the email from which newsletters are sent I'm hoping you got the s/w to extract or do what you are best at doing to me this Db. Thanks. flashsaiful