Canned Emails - A minimal site with prewritten emails
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Rename Email - Easily change the subject of any email, by cloudHQ
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
analyze.email - Test the spam-y-ness of your emails
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.