Aug 09, 2019 I ended up dumping Mail.app for Outlook 2016 for Mac. I plan on dumping GMail/GApps in the future since it doesn’t really play nice with Mail.app and I’m not keen in having Google have control of everything and privacy concerns. After removing the accounts, Mail.app didn’t randomly pop up. In short, it may be just a GMail issue.
If you are experiencing this issue as I did — the?Dictionary/definition keeps popping up when you type or use the mouse, here’s the solution for you.
Mail App Keeps Popping Up Mac Download
The problem appeared on my MacBook from yesterday, which I had no idea what I did. I was just typing on Google docs and some words got automatically highlighted, followed by a Dictionary app showed up that provided a definition of the word the mouse pointed at (see this screenshot). The weirdest?thing was that my screen sometimes enlarged itself.
At first, I thought it was due to that I haven’t updated system to latest OS — so I went ahead and upgraded OS. But the issue still persisted.
The real solution
It’s actually quite simple. All you need to do is disable an option via in the trackpad setting.
Step 1: on your Mac, open System Preferences.
Step 2: click Trackpad.
Step 3: under Point & Click tab, uncheck “Look up & data detectors”.
Macos Mail App Keeps Popping Up
That’s it. Quite simple, right?
Not sure how I messed up and checked this option. My guess is that I might have mis-clicked it while I was cleaning my Mac screen and keyboard.
Mail Keeps Opening On Mac
Anyway, hope this tip has helped you out.