Failed to read beginning of SSL/TLS record – can be caused by External Firewall

The following error was recently reported: … Connecting to POP3 server hostname: port: 995 tls: True connectTimeoutMs: 30000 isInSshTunnel: 0 socket2Connect: connect2: connectImplicitSsl: clientHandshake: clientHandshake2: readHandshakeMessages: WindowsError: An existing connection was forcibly closed by the remote host. WindowsErrorCode: 0x2746 maxToReceive: 5 Failed to receive data on the TCP socket Failed to read beginning of SSL/TLS record. b: 0 dbSize: […]