We have a former user who was recently brought back. This user will not receive any email notifications from JIRA, or from JIRA Service Desk as a customer. We have checked their permissions and the notification helper, but nothing seems awry.
It is just this one user, having problems. Notifications work for everyone else in the company, and this user can receive emails from elsewhere. I suspect they may have been blocked by Atlassian somehow after their email was deactivated. Does this seem feasible? If so, how to I get their email to start flowing again?