I work as the one-person "IT Department" for a small but growing wildlife conservation non-profit based in San Francisco. I find myself figuring out a lot of things through my own research, trial and error. This is my attempt to give back to the Non-Profit IT community.
Missing emails in Gmail? Switch Inbox Type = Default in Settings
A new employee was complaining about missing emails not showing up in his Inbox, but they would appear in search results. This was due to the Priority Inbox setting. Turn it off and everything works as expected.