GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
SendingBee - SendingBee is a new email marketing platform with support for advanced segmentation, variables and conditions in templates, APIs, and more.
Mailmeteor - Send hundreds of personalized emails with Gmail.
Mailchimp Pro - A new suite of features to optimize emails for $199/month
Mailivery - Reach the Inbox, not the spam folder.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.