Topic
User receives access denied when trying to access inflight workflow task due to the email domain being changed.
Instructions
The task needs to be delegated by an user with global administrator role or a business owner of the workflow creating the task. The administrator can also override the task instead to progress the workflow. This is done through "Workflow Tracking" feature in the My Nintex dashboard. Review the below articles on how to delegate and override workflow task.
https://help.nintex.com/en-us/nwc/content/MyNintex/ParticipantTasks.htm#top
https://help.nintex.com/en-us/nwc/content/Dashboard/Tasks.htm