It's a bit excessive to send an enotif for each translation review of a message in your watchlist: it potentially means to receive an email for each edit performed. It's useful to look into it if you translation was incorrect (and why), less if it was correct.
It could be an additional preference, but as far as I know recent changes patrol and flagged revisions actions (which apply to single revision/edits too) don't trigger any.
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Severity: normal