Mailbox had previously begun sending invites out in August for those who signed up to test the Mac beta. However, today the app went into full open beta, allowing any interested party to begin testing it.
One of the driving features of Mailbox for iOS is the ability to use quick swipes and gestures to archive, delete, or even snooze emails, and the Mac app carries these very same features over. In addition, all changes made on the Mac app will sync with the mobile version, and vice versa.
Will you be giving Mailbox for Mac a shot?