I am using EM Client version 9.2.1222 (ca10485) and it stopped sending e-mails a couple of days ago. I am receiving them normally. This is the smtp log I got today.
SMTP S: 220 2.0.0 Ready to start TLS
23:22:57.670|059| Exception: MailClient.Accounts.ConnectionException: Conexão falhou devido a seguinte razão:
23:22:57.670|059| “Authentication failed because the remote party sent a TLS alert: ‘HandshakeFailure’.”
23:22:57.670|059| —> System.Security.Authentication.AuthenticationException: Authentication failed because the remote party sent a TLS alert: ‘HandshakeFailure’.
23:22:57.670|059| —> System.ComponentModel.Win32Exception (0x80090326): Mensagem recebida inesperada ou formatada incorretamente.
23:22:57.670|059| — End of inner exception stack trace —
Did not make any modification i my PC during the last weeks.