Freezes and crashes incessantly  and sometimes eats messages in composition I have been using K-9 Mail for over 2 years due to being stuck with POP3 service on Verizon  and K-9 Mail has increasingly tended to freeze up and sometimes crash; after the update to the latest version available on January 3  2017  it stopped working entirely. It also sometimes loses messages in composition without saving a Draft. Switched to Blue Mail  which is missing some features important for POP3  but at least works.
January 11 2017