Over the last few months of my business I have built up quite a few hundred email address'. I want to be able to email everyone on the list occasionally with each recepient only seeing their own email address.

I am using a mac and currently the only way I can do this is if I copy and paste each customer's email address into Address Book which takes ages. What do other companies do? I need a mailing list manager of some sort I think, any ideas? Thanks

Most companies out source email mailings to the people who know how to do it well. I reccomend Vertical Response.

Others go the open source route using programs such as PHPlist