Mistake 19
One day a former employee contacted the company to complain about Jira data being sent to their personal email address. Upon investigation, I discovered that data was being sent to hundreds of other past or present users with external addresses in the Jira database.
There were two problems:
Both are a recipe for disaster!
Recommendations
Instead, make sure users have a clear end date when user access should be removed. This is especially important for external users who are sometimes managed differently than regular departing employees.
Create a Jira issue, at the time an external user is hired, to remind the team to perform a removal at the end of the contract date.

Offboarding request in Jira Service Management
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