this is my error :
An unknown error occurred while receiving email. Mailbox Admin crm didn't synchronize. The owner of the associated email server profile Smtp has been notified.
ActivityId: f8d7c478-8086-4503-b25a-29c88299bf14
>Error : System.IO.IOException: The handshake failed due to an unexpected packet format.
at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
at System.Net.Security.SslStream.AuthenticateAsClient(String targetHost)
at Microsoft.Crm.Asynchronous.EmailConnector.Pop3Client.AuthenticateAsClient()
in the emial router show this error :
Incoming Status: Failure - SSL authentication failed because there was a problem with the certificate. RemoteCertificateChainErrors
please help me