TRG(EWS) Connect begin
Info Get user settings for email address: 'john.smith@domain.com', autodiscover url: 'https://autodiscover-outlook.com/autodiscover/autodiscover.svc'
AutodiscoverRequestHttpHeaders
POST /autodiscover/autodiscover.svc HTTP/1.1
</Trace>
2/1/2016 5:41:08 AM AutodiscoverRequest <Trace Tag="AutodiscoverRequest" Tid="56" Time="2016-02-01 05:41:08Z" Version="15.00.0913.015">
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:a="http://schemas.microsoft.com/exchange/2010/Autodiscover" xmlns:wsa="http://www.w3.org/2005/08/addressing" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header>
<a:RequestedServerVersion>Exchange2010</a:RequestedServerVersion>
<wsa:Action>http://schemas.microsoft.com/exchange/2010/Autodiscover/Autodiscover/GetUserSettings</wsa:Action>
<wsa:To>https://autodiscover-s.outlook.com/autodiscover/autodiscover.svc</wsa:To>
</soap:Header>
<soap:Body>
<a:GetUserSettingsRequestMessage xmlns:a="http://schemas.microsoft.com/exchange/2010/Autodiscover">
<a:Request>
<a:Users>
<a:User>
<a:Mailbox>john.smith@domain.com</a:Mailbox>
</a:User>
</a:Users>
<a:RequestedSettings>
<a:Setting>ExternalEwsUrl</a:Setting>
</a:RequestedSettings>
</a:Request>
</a:GetUserSettingsRequestMessage>
</soap:Body>
</soap:Envelope>
</Trace>
Error Microsoft.Exchange.WebServices.Data.ServiceRequestException: The request failed. The underlying connection was closed: An unexpected error occurred on a send. | at ...
....
[inner] 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, AsyncProtocolReque