SharePoint 2013 workflow does not send email

Question

I have created an approval SharePoint 2013 workflow. However, it executes all the actions before 'Send email' action but executing 'Send email' gives below exception:

RequestorId: f679ccb9-2fc0-8099-0000-000000000000. Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 500 {"Transfer-Encoding":["chunked"],"X-SharePointHealthScore":["0"],"SPClientServiceRequestDuration":["1058"],"SPRequestGuid":["f679ccb9-2fc0-8099-9fd6-bcce66215203"],"request-id":["f679ccb9-2fc0-8099-9fd6-bcce66215203"],"X-FRAME-OPTIONS":["SAMEORIGIN"],"MicrosoftSharePointTeamServices":["15.0.0.4420"],"X-Content-Type-Options":["nosniff"],"X-MS-InvokeApp":["1; RequireReadOnly"],"Cache-Control":["max-age=0, private"],"Date":["Mon, 29 Oct 2018 05:09:27 GMT"],"Server":["Microsoft-IIS/8.5"],"X-AspNet-Version":["4.0.30319"],"X-Powered-By":["ASP.NET"]} at Microsoft.Activities.Hosting.Runtime.Subroutine.SubroutineChild.Execute(CodeActivityContext context) at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.Runtime.ActivityExecutor.Execute

I have even created a new workflow just to send email (hardocoded user), it logs successfully before the 'Send email' action but gives the above exception.

The SMTP is configured properly and SharePoint 2010 workflows sends email on same web applications.

I have just re-installed workflow manager and applied the CU5 updates.

The internal status is "Suspended".

Update:

I just tried to add the user into a group and checked the "Send email invitation", it doesn't send email either.

Workflow screenshots:

Even after removing the Email action out of the App step, issue persist.

Any help is much appreciated!

Answer 1

From what i know , the error is with 500 status and i can see sharepoint health score as well . Sometimes it happens because of memory related problems.

I would suggest you to test the same workflow in some other environment and with same domain account .

Let me know if you get error in other envt as well , then we can try couple of things.

Answer 2

If the email doesn't get send when you add user that means the emailing is not configured correctly. Review settings of your outgoing email.

1. Ping the email server does it respond (if it doesn't then review firewall rules)
2. Check with team that handles your email server do they get any errors.
3. Review the Event viewer logs for any events when you try to send the email.

Answer 3

This is a common error for SharePoint Designer Workflows. The most common mistake for getting this error is "LOGGING". Logging in the workflow history is limited to 255 characters.

Re-check the logging in you workflow and if the logging content exceeds or you think will exceed 255 characters then please remove it or replace with shorter text and the try running again.