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Dynamics 365 Version 1612 (22.214.171.124) (DB 126.96.36.199) on-premesis
Exchange Server 2010 Version 14.03.0266.001
I am facing the following error:
The email message "Test Message" cannot be sent because an error occurred while establishing a secure connection to the email server. Mailbox "noreply" didn't synchronize. The owner of the email server profile contoso.org has been notified.Email Server Error Code: Web server returned SecureChannelFailure exception.
Details: ActivityId: .....>Error : System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel. at System.Web.Services.Protocols.WebClientProtocol.EndSend(IAsyncResult asyncResult, Object& internalAsyncState, Stream& responseStream) at System.Web.Services.Protocols.SoapHttpClientProtocol.EndInvoke(IAsyncResult asyncResult) at Microsoft.Crm.Asynchronous.EmailConnector.ExchangeServiceBinding.EndCreateItem(IAsyncResult asyncResult) at Microsoft.Crm.Asynchronous.EmailConnector.ExchangeOutgoingEmailProvider.EndCreateItem()
Another error in the Email Server Profile alert:
One or more active mailboxes associated to this email server profile are disabled for incoming or outgoing email processing. For a list of these mailboxes, see the Disabled Mailboxes view
I guess that this error is referring to the noreply account.
Few setting are reported below:
Outgoing Email setting = Server-Side Syncronization or Email Router
Email Server Profile Settings:Server Type = Exchange ServerOutgoing Server Location = domain/.../Exchange. asmxOutgoing port = 443Use SSL for Outgoing Connection = YesOutgoing Authentication Protocol = Auto Detect
Without any change in the configuration, CRM stopped to send emails
I checked all configurations
I tried to restart Microsoft Dynamics CRM Asynchronous Processing Service
I tried to restart the server where CRM is installed
Thank you in advance
If you have restarted all the CRM services and done an IIS reset and if still no luck, could you check the following
I would check if the Exchange SSL certificate has expired or not. You can try and access the EWS on browser and see if you are getting any Cert error.
If the EWS is configured to respond to only HTTP request and if CRM is configured to use HTTPS, CRM wont be able to talk to EWS if it does not respond in HTTPS.
thank you for your time.
The certificate will expire in 2020, and is present in both machine (CRM, Exchange).
I tried to reset IIS.
I also tried to browse the EWS configured https:// mycompany.com/EWS/Exchange. asmx and the browser redirect me to -> https:// mycompany.com/ews/Services. wsdl (honestly I don't know if it is correct)
The fact is that until 2 weeks ago it was working regularly and now it seems that the certificate is not recognized anymore.
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