What are some alternatives?
Email on Acid - Save time and drive revenue by testing your email before you hit send.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Yet Another Mail Merge - The perfect mail merge tool for Gmail
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
MailDrop - maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.
ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.