Board Thread:General Discussion/@comment-44242083-20200317174154/@comment-9605025-20200317174840

Go to Special:EditWatchList on the wiki and remove all pages from the list. This should prevent you from getting email notifications for that wiki. If you are talking about the notifications that show in the global navigation bar, those will stop 90 days after your last edit on the wiki. If that isn't soon enough for you, you can use AnnouncementsIgnore.