If there is a timeout while hMailServer is waiting for a command from the SMTP client, this error message is sent to the client before hMailServer disconnects the client. Notification!WindowsService_16!3b00!-09:00:27:: e ERROR: Error occurred processing subscription 26e5d27c-a524-467e-aba4-a977ad6b36f7: Failure sending mail: One or more errors occurred.SMTP error messages 421 Connection timeout Additional Information: SmtpException StatusCode:GeneralFailure > : An existing connection was forcibly closed by the remote host > System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. > (Inner Exception #0) : Failure sending mail. > : An existing connection was forcibly closed by the remote hostĪt .UnsafeBeginSend(Byte buffer, Int32 offset, Int32 size, SocketFlags socketFlags, AsyncCallback callback, Object state)Īt .UnsafeBeginWrite(Byte buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)Īt .EndSend(IAsyncResult asyncResult)Īt .SendMessageCallback(IAsyncResult result)Īt .ThrowIfExceptional(Boolean includeTaskCanceledExceptions)Īt .Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)Īt .Wait(TimeSpan timeout) Exception: System.AggregateException: One or more errors occurred. I checked SMTP configuration and currently, it is set to no authentication.Įmailextension!WindowsService_16!3b00!-09:00:27:: e ERROR: Error sending email. There are other subscriptions and those are working fine. I changed it back to the original schedule time that was 9 am and today it failed with the below error message:Īgain today I rescheduled it 5 minutes after and it worked fine. When I rescheduled the subscription It worked fine 2nd time. On Friday actually, there was no error message on Report manager but subscribers did not receive the email. This SSRS subscription has an excel attached to it while sending an email. Since last Friday, One of the SSRS report subscriptions is not working. sql-server-general sql-server-reporting-services sql-server-integration-services (Very recently we have changed Sendgrid Username/Password with APIKeys)Īny help would be appreciated. Reports running fine,i dont think its an timeout error. Notification!WindowsService_12!2130!-06:46:30:: e ERROR: Error occurred processing subscription b0ef6472-f255-48ed-bb1d-79a813ee4d64: Failure sending mail: Failure sending mail.īelow is the Config file configuration for sendgrid SMTP: End of inner exception stack trace -Īt .Deliver(Notification notification) > System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.Īt .ProcessRead(Byte buffer, Int32 offset, Int32 read, Boolean readLine)Īt .ReadLines(SmtpReplyReader caller, Boolean oneLine)Īt .ReadLine(SmtpReplyReader caller)Īt .Send(SmtpConnection conn, String& response)Īt .Send(SmtpConnection conn, Byte command, MailAddress from, Boolean allowUnicode)Īt .SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)Īt .Send(MailMessage message) I am constantly getting the following error when sending out email subscriptions, below is the Error details in log file.Įmailextension!WindowsService_12!2130!-06:46:30:: e ERROR: Error sending email.