email app

Backup Thunderbird emails to Various file formats and email clients on Mac

Backup IMAP mailboxes to various file formats and email clients on macOS

Backup AOL emails to 20+ file formats and email clients by using AOL Backup Tool

Internet email client.

Powerful file/URL/email launcher utility.

Powerful, minimal email client.

Robust spam filter for major email clients.

Powerful and flexible email client.

Create personalized email newsletters.

Robust email client from the makers of BBEdit, now free.