ssl/tls alert certificate unknown: SSL alert number 46

[mister_v]

I have the following alert in my logs /va/log messages
from dovecot.

Code: Select all

SSL_accept() failed: error:0A000416:SSL routines::ssl/tls alert certificate unknown: SSL alert number 46

The client is also not showing new messages.
Client software is k-9 mail on Android.

[chris]

Sounds like the client is not accepting the certificate.
did you change the certificate of the server recently ?

I think you need to accept the new certificate on the client software.
In K-9 it is in Settings > accounts > Fetching mail > Incoming Server > Next of Advanced
and accept the new certificate.

[mister_v]

Yes, indeed accepting the new certificate solved the problem.
But should K-9 not show a warning when the SSL-certificate changes ?
instead of doing nothing ? It is confusing.