When I try to send an email from CRM they are constantly retrying to send, sometimes up to seven times but eventually fail. The event viewer points to the issue but I am not sure exactly what is required to fix this. The key part of the message below being...The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Client was not authenticated.
#61042 - An error occurred while processing the outgoing e-mail message with subject "New Product STILL Awaiting Update: testinformation" for SMTP: http://crmsrv:5555/IMC for delivery through exchange.imco.local. System.Net.Mail.SmtpException: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Client was not authenticated
at System.Net.Mail.MailCommand.CheckResponse(SmtpStatusCode statusCode, String response)
at System.Net.Mail.MailCommand.Send(SmtpConnection conn, Byte[] command, String from)
at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at Microsoft.Crm.Tools.Email.Providers.SmtpPollingSendEmailProvider.ProcessMessageInternal(email emailMessage)
at Microsoft.Crm.Tools.Email.Providers.CrmPollingSendEmailProvider.ProcessMessage(email emailMessage)
at Microsoft.Crm.Tools.Email.Providers.CrmPollingSendEmailProvider.Run()
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Thank you.
