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If a user is forced you cannot remove them and if you try you will receive a message.
To Edit a Distribution List
1. Click on the Project Tools icon and then Contact Details
2. Scroll down to just below the notifications section and click on Edit Distribution Rules.
3. A window will display all rules, lists and workflows that are accessible or editable by you.
Click on Distribution Lists and then Edit.
4. Edit the Distribution List as required and click on save.