Matches: ("opt-out" OR unsubscribe OR "viewing the newsletter" OR "privacy policy" OR enews OR "edit your preferences" OR "email notifications" OR "update profile" OR smartunsubscribe OR secureunsubscribe OR yahoogroups OR "manage your account" OR "group-digests") Do this: Skip Inbox, Apply label "Work/Newsletters"
Matches: (subject:("invitation" OR "accepted" OR "rejected" OR "updated" OR "canceled event" OR "declined") when where calendar who organizer) Do this: Skip Inbox, Apply label "GTD/Follow up"
Matches: ("might benefit" OR "i'm contacting" OR "learning more" OR "request for") Do this: Skip Inbox, Mark as read, Apply label "Work/Sales"