Hello, I guess it was last year when I had the same problem as now: When I am fetching mails by pop3s (port 995), then the connection is lost with a "The server has closed the connection during the TLS handshake". The log file doesn't show anything else.
I guess, that I had this command line parameter in my link for TB!, but currently it has no effect on TLS connections: /TLS_DISABLE_PERFECT_FORWARD_SECRECY I tried to setup Thunderbird and it works perfectly with my own server with a Let's Encrypt certificate on the dedicated port (995). The certificates are in the Trusted Root CA addressbook of TB! I have no problems sending an email by TLS on 465. Do you have an advice for me? -- Best regards,, Christoph TheBat! v9.1.18.6 (ALPHA) unter Windows 10.0 Build 18363 ________________________________________________ Current version is 9.1.18 | 'Using TBUDL' information: http://www.silverstones.com/thebat/TBUDLInfo.html