I added ssl support to my exim smtp server. Now I'm trying it with a Thunderbird client, first of all I imported my self signed certificate to thunderbird keystore and than I tried to connect. It fails, and this is what exim get:
2016-02-27 15:26:00 TLS error on connection from [22.214.171.124] (recv): A TLS fatal alert has been received.: CA is unknown 2016-02-27 15:26:00 TLS error on connection from [126.96.36.199] (send): The specified session has been invalidated for some reason.
I cannot understand if this is a client or server error, for me it should be a client error, but why it happends if I imported the certificate in thunderbird keystore?