BlogIT

BlogIT is equipt with a full email marketing plugin. Send bulk email from your blog free.
Newsletter software and enables mailing list Email merge.

Plugin Features
Subscribe new members
Unsubscribe old members
Stores subscribed email addresses
Purges old email addresses.
Customizable sidebar appearance,
Customizable texts and labels.
Adds up to 15 custom fields
Plugin Options
Mailbox setup for managing subscriptions
Message to subscriber - subject
Message to subscriber - content
Double Opt-in
Link Love (enable and disable)
Front side messages
Front side appearance and custom fields
Full customizable language setup
Temporary database storing for newly subscribed members
Automatic temporary database cleanup