18.07.2020, 14:30, Benny Pedersen <me@junc.eu>
ratatouille skrev den 2020-07-18 13:20:

> Commenting just ssl_min_protocol = TLSv1.2 seems to solve the problem.
> So I have the default ssl_min_protocol = TLSv1

with means that the device running k9 is not supporting TLS 1.2 yet
TLS 1.2 is enabled by default in Android versions 5.0 and newer.

For earlier Android versions, K9 has (or used to have) a setting to "harden" its SSL/TLS settings, which enables TLS 1.2 as far back as 4.3 or something.

-- K