Several Mac users have reported that the Mail app window just pops up randomly and for no reason. Are you also having this problem on your Mac? This short article explains how you can stop the Mail app from keep launching itself automatically while using the computer. This is an annoying problem because it will interrupt what you are doing.
Please try each step until your issue is fixed:
Right-click on the installer and click on 'Properties'. Canoscan 8600f review. Click on the ‘compatibility’ tab and check the box 'Run this program in compatibility mode for” and select previous Operating System from the drop down. Download the drivers from the manufacturer’s website.
Manual ways, that have been detailed above in this blog to resolve Apple Mail Moving Messages Stuck/ mac mail moving messages slow issue is not recommended always. Also, considering and acknowledging the limitations of these manual ways, using some good third-party tool. 
Nov 14, 2017 Mac mail program is still stuck downloading the 300 emails, even though there are no longer the 300 to download. Must be a glitch. Hate to abandon the program, as it works so much better than the Earthlink one that came with the server company. May 03, 2019 Troubleshoot Mail App Always Downloading Reload Mail App. Quit the Mail app by select Mail Quit Mail. Then, relaunch the Mail app while holding the Shift key on your keyboard. This action forces Mail to open without displaying any problematic messages.
Jul 16, 2014 Before you get into the steps of how to change a Mac app icon, you obviously need to have a new icon chosen and ready to use. MacOS uses.icns files for application icons, and it’s best to stick with this format if possible, as an.icns file contains multiple sizes of an icon for various uses. If you are using a different file type, such as.
1-Are your having this problem when you first open your computer. Depending on your settings, some apps, like the Mail app, may open automatically when you log in. If you want to stop this, the first thing you should check is your settings to see if if Mail is set to launch at login. Here is how you can check this:
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- Jul 16, 2014 Before you get into the steps of how to change a Mac app icon, you obviously need to have a new icon chosen and ready to use. MacOS uses.icns files for application icons, and it’s best to stick with this format if possible, as an.icns file contains multiple sizes of an icon for various uses.
- On your Mac, open System Preferences (from the Apple menu at the top-left of the screen), or use Terminal.
- Click Users & Groups
- Click the Login Items tab
- Here you will see the apps that will open automatically at login. If Mail is there, you can stop it from opening automatically, select and and click the minus icon to remove it.
2-Another change you you want to make is to disable the “Close windows when quitting an application” option. You can do that by going to System Preferences and click the General pane and the check the “Close windows when quitting an application” box.
3-Some Mac computers support a feature called “Power Nap”. If you enable this, you Mac will check for new mail messages (among other things) while it is asleep. You may want to disable this. Again not all Mac models support this feature. The following models support this:
- MacBook (Early 2015 and later)
- MacBook Air (Late 2010 and later)
- MacBook Pro (all models with Retina display)
- Mac mini (Late 2012 and later)
- iMac (Late 2012 and later)
- Mac Pro (Late 2013)
To turn this off, go to System Preferences. And click Energy Saver. And then uncheck the “Enable Power Nap” box.
4-It has been reported that email settings in Google Calendar may cause this. Are you using a Gmail account? If so, you may want to try this. (see also: Gmail not working?)
- Visit the Google Calendar site (https://calendar.google.com/calendar/)
- Login if not already
- Click the Settings Menu icon (upper right hand corner of your screen – gear icon) and from the pull down menu, click Settings
- Select your Calendar
- Scroll and find the General Notifications section
- And change all this notification settings from Email to None. (There are five options)
Further your may also want to disable event settings notifications. Here is how:
Mac App Icon Generator
- Click the General tab (left area)
- Click Event Settings
- Click Notifications
- And select “Off”
See also: Calendar Invitation: Your Response To The Invitation Cannot Be Sent
5-Some users reports indicate that Mail will launch in split view. If you are having this problem, here is what you can do:
- Open the Mail app
- Click Mail and Preferences (from the menu bar)
- Click the General tab
- And then deselect the “Prefer opening messages in split view when in full screen” box
- And close the window
6–Restart your Mac in Safe Mode. Here is how:
- Turn off your Mac
- Turn on your Mac while pressing and holding the Shift key
- Release the Shift key when you see the login screen.
- Now your Mac is in Safe Mode. Does your problem still occur?
- If now, restart your Mac normally, without pressing the Shift key
7-Force quit the Mail app. Here is how:
- Option, Command, and Esc
- Select the Mail app
- Click Quit
- Now restart your Mac
If none of the tips help you, you may contact Apple. You can also give Apple feedback about this problem.
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See also: How To Open Winmail.dat Attachments