Problem sending mail with web.de (SMTP)

Hi,
I just installed emClient because I ́m fed up with Microsoft ́s ever changing mail tools, but it seems I can ́t send mails to my web.de server. Here ́s the log:

15:09:12 Web (herbikoller) [SMTP]  MailClient.Accounts.ConnectionException: Die Verbindung schlug fehl:
15:09:12     “Fehler bei Handshake wegen eines unerwarteten Paketformats.” —> System.IO.IOException: Fehler bei Handshake wegen eines unerwarteten Paketformats.
15:09:12    bei System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
15:09:12    bei System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
15:09:12    bei System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
15:09:12    bei System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest)
15:09:12    bei System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
15:09:12    bei System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
15:09:12    bei System.Net.Security.SslStream.AuthenticateAsClient(String targetHost, X509CertificateCollection clientCertificates, SslProtocols enabledSslProtocols, Boolean checkCertificateRevocation)
15:09:12    bei MailClient.Protocols.Smtp.SmtpSendCommand.Connect(WorkerStatus status)
15:09:12    — Ende der internen Ausnahmestapelüberwachung —
15:09:12    bei MailClient.Protocols.Smtp.SmtpSendCommand.Connect(WorkerStatus status)
15:09:12    bei MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
15:09:12    bei MailClient.Commands.Command.Process(WorkerStatus status)
15:09:12 Web (herbikoller) [IMAP]  Synchronisiere Unterordner: Fertig

Something about an unexpected package format.
I ́m running Win10 and configured emClient as a regular IMAP/SMTP client for web.de.

Hope you can help, otherwise I would have to look for another email client.

Herbert

This thread can be closed. I changed the SMTP configuration to “enforce SSL/TLS” and now it seems to work.