mail connector has time-out failure code 4

Hi Mike,

According to the Docs:

-4 - Unsuccessful (error while sending the email to the email server. Check the Indicium error log.)

Process flow connectors | Thinkwise Documentation

Could you inspect the Indicium log to see there is any additional information?

Hi Mark,

this is the text of the live error log:

at Indicium.Messaging.Email.SMTP.TSFSmtpClient.SendMail(EmailTemplate emailTemplate, IEnumerable`1 toRecipients, IEnumerable`1 ccRecipients, IEnumerable`1 bccRecipients) in C:\azp\agent\_work\1\s\src\Messaging\Email\Indicium.Messaging.Email.SMTP\TSFSmtpClient.cs:line 105
at Indicium.Shared.ProcessFlows.SystemActions.EmailConnector.StartInternal(ReadOnlyDictionary`2 inputParameters) in C:\azp\agent\_work\1\s\src\Indicium.Shared\ProcessFlows\SystemActions\EmailConnector.cs:line 317

and this one from the error log

System.Exception: Failed to send email.
 ---> System.TimeoutException: The operation has timed out.
   at MailKit.Net.SocketUtils.ConnectAsync(String host, Int32 port, IPEndPoint localEndPoint, Int32 timeout, CancellationToken cancellationToken)
   at MailKit.MailService.ConnectNetworkAsync(String host, Int32 port, CancellationToken cancellationToken)
   at MailKit.Net.Smtp.SmtpClient.ConnectAsync(String host, Int32 port, SecureSocketOptions options, CancellationToken cancellationToken)
   at Indicium.Messaging.Email.SMTP.TSFSmtpClient.sendMailAsync(SmtpClient client, ISmtpSettings settings, MimeMessage message) in C:\azp\agent\_work\1\s\src\Messaging\Email\Indicium.Messaging.Email.SMTP\TSFSmtpClient.cs:line 157
   at Indicium.Shared.Utils.SlidingExpObject`1.performLease(Func`2 onLeased) in C:\azp\agent\_work\1\s\src\Indicium.Shared\Utils\SlidingExpObject.cs:line 114
   at Indicium.Messaging.Email.SMTP.TSFSmtpClient.SendMail(EmailTemplate emailTemplate, IEnumerable`1 toRecipients, IEnumerable`1 ccRecipients, IEnumerable`1 bccRecipients) in C:\azp\agent\_work\1\s\src\Messaging\Email\Indicium.Messaging.Email.SMTP\TSFSmtpClient.cs:line 98
   --- End of inner exception stack trace ---
   at Indicium.Messaging.Email.SMTP.TSFSmtpClient.SendMail(EmailTemplate emailTemplate, IEnumerable`1 toRecipients, IEnumerable`1 ccRecipients, IEnumerable`1 bccRecipients) in C:\azp\agent\_work\1\s\src\Messaging\Email\Indicium.Messaging.Email.SMTP\TSFSmtpClient.cs:line 105
   at Indicium.Shared.ProcessFlows.SystemActions.EmailConnector.StartInternal(ReadOnlyDictionary`2 inputParameters) in C:\azp\agent\_work\1\s\src\Indicium.Shared\ProcessFlows\SystemActions\EmailConnector.cs:line 317
2025-11-24T13:01:52.1532140+00:00 40000052-0001-ec00-b63f-84710c7967bb [ERR] Process action "email_connector" in process flow "closure_new_customer_email" in application 375 threw an exception. (dedd009e)
 

the 2525 port has been checked and is working.