Just in case somebody is helped by this ..... After a recent openssl (1.1.1-2) update in Buster, one of my KMail connections to an internal imap server stopped working (symptoms: could not retrieve old emails and could not view any "Folder Properties" in that account).
I was half expecting this, and the fix was in the description of the update from the package maintainer: ------ Following various security recommendations, the default minimum TLS version has been changed from TLSv1 to TLSv1.2. Mozilla, Microsoft, Google and Apple plan to do same around March 2020. [...] Changing back the defaults in /etc/ssl/openssl.cnf to previous system wide defaults can be done using: MinProtocol = None CipherString = DEFAULT It's recommended that you contact the remote site in case the defaults cause problems. ------ Andy.
