Polymail - Native email app for email productivity.
Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.
HEY - Email at its best, new from Basecamp.
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
Notch Simulator - Now you can have the latest MacBook Pr for free!Hover to reveal the quit button.That's it!
MailClark - The Slack bot for external communications