Canned Emails - A minimal site with prewritten emails
Spam Check - A free JSON API to check your email messages' spam scores
Rename Email - Easily change the subject of any email, by cloudHQ
Mailcheck - An application to clean your subscription list from bounces, and enrich data with the customers
ShowSubjectGmail - Edit the "subject" field when replying in Gmail!
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI