Mailburn Alternatives

Mailbutler adds lacking functionality to email clients and increases your productivity

Go through your email as fast and easy as text-messaging

The complete stand-up and follow-up bot

Try for free freemium $29.0 / Monthly (Flat price)

Send short emails & read emails as fast as you read Facebook

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Open Source

myMail is the smart email app for managing all your accounts on iOS and Android.

Quillbot is a free paraphrasing tool that will rewrite any sentence or paraphraph you give it. The article rewriter can rewrite essays or articles and is excellent as a grammar and fluency corrector.

freemium $14.95 / Monthly (Pro)

Email newsletters, outside of the inbox

MailTag is your all-in-one free Chrome extension for email tracking, scheduling, and auto follow-up.

Superhuman is an email management tool.

K-9 is an opensource email client making it easy to chew through large volumes of email.

Boomerang for Outlook offers email productivity tools to track, schedule and send mails at the right time.

The best email tracking solution I've found. Free