I'm getting an errors after my workflow Pauses for any duration (1 min/5 days). The workflow resumes successfully and if I use the OOTB Send Email Action, the email sends successfully. If I use the Send Email Extended Action to send
an email after a Pause I get the following error.
Step 1 = Send Email Extended (successful)
Step 2 = Pause for Duration (successful)
Step 3 = Send Email (successful)
BUT if I change Step 3 to use Send Email Extended I get...
Step 3 = Send Email Extended (error)
System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after
The error message cuts off. We've done a packet capture & the SharePoint WFE doesn't even attempt to contact the Exchange server as it did successfully in Step 1 when it sent the original email.
To fix, I've had to terminate the errored workflow and then run the workflow manually on the item which then skips Steps 1 & 2 due to conditions and the workflow then performs step 3 successfully. I've created a simple test workflow with
just the 3 steps above and get the same error.
Does anyone have any ideas?