I have a state machine workflow with flexi tasks in each branch. When running the workflow, sometimes the task was created but email notification was not received by the user who was assigned the task. This happened randomly, if I didn't get the email notification the first time, I may get it if I ran the workflow again. It is not the permission issue. Just wondering if there is a way to trace the email in Nintex log or the database, to see if the email was sent to the email server within SharePoint.
Appreciate any idea and suggestions.