Mail Merge - enhanced
If you send emails/ mails to a lot of people you are already aware of the mail merge feature of the Office Suite. If you are someone like me who sends a lot of email then email merge is what you mostly like use.
the email merge features available with Word are pretty limited. You can only choose the same subject for all emails and can only have a To line. this is pretty limiting.
to use features like cc, bcc and attachments in the email merge, dump Word. Go for Publisher 2007 that has email merge containing these features.