Well I had the exact same problem with it on my mac book air. I kept opening it and it would keep saying 'verifying 'GTA 5'. When I went go to the bathroom it opened by it's self. I'm pretty sure this is dew to the large file sizes and it taking longer to work, as minecraft and league of legends verified almost instantly.
I'm using Outlook 2016 on my Mac and would like to use it for all my email as I use Safari to login to my personal web mail. On Yosemite I would open Mail, go to Preferences and change the Default Email Application in the menu to Outlook. I can do that on El Capitan but as soon as I close preferences and open it again the setting is back to Mail.
Having Apple Mail auto-open might be convenient for those who actually use it, but for people who use a web-based mail service like Gmail or Outlook, having an unnecessary app open after you click.
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:
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:
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?)
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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:
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
Delete Mail App On Mac
If none of the tips help you, you may contact Apple. You can also give Apple feedback about this problem.
See also: How To Open Winmail.dat Attachments
Several Mac users have said that Mail closes or quits unexpectedly. This article explains how you can troubleshoot if the Mail app on your Mac keeps crashing when you want to open it. This article will help you if:
Mail opens without any issue but then crashes later on.
Mail crashes as soon as it starts.
Mail opens but hangs with the spinning color wheel and then crashes.
See also: Mac Mail App Opens Itself Randomly, Fix
Please try the steps below. After trying each step below, test Mail again to see if you can open it. Before you do anything, simply restart your Mac. If restarting does not fix your problem, then try the steps below:
See also: Email Attachments Won’t Open in Safari on Mac
Update
Update your Mac. Then try to open Mail again. When you update the macOS software on your Mac, Mail will also be updated. And this may resolve your problem. Here is how:
Once you've resolved it, re-enable the network and get a backup to make sure you have a clean one to rely upon going forward. App on mac cant be deleted. If you just wait a day, usually the system gets done or gives up on whatever it thinks it's doing with the app in question (and that's why it's grey).If you can't wait longer, put the iPad in airplane mode and power it off the normal manner - hold sleep/wake and then slide to power off.When the device starts with no network access, whatever process marked that as 'deleting' or 'installing' should be released and you can delete the app.If that fails, you have a harder issue and might need to do a backup or connect to iTunes to erase the app.
If you are using macOS Mojave or later: Go to System Preferences and Software Update.
If you are using macOS High Sierra or earlier: Open the App Store and click Updates.
See also: Mac Mail App: Gmail Not Working? Fix
Rebuild
Try rebuilding your mailboxes to see if this fixes your problem Here is how:
Open Mail.
Select a mailbox.
Click Mailbox > Rebuild.
You may not be able to rebuild since Mail keep crashing. But try this if you can.
Certain messages causing this?
Are you having this problem when you want to open certain mail messages? It is possible that Mail may quit due to damaged emails. You can resolve this by deleting these problematic messages. Damaged messages may cause the Mail app to crash when you scroll through messages to view them. Here is how:
Press and hold the Shift key.
While pressing the Shift key, open the Mail app. When you open the Mail app while pressing the Shift key, Mail will open without any message selected.
Then drag the Message Viewer pane (the horizontal divider) until you only see the list of messages.
Select the problematic message by clicking once. This is the message that was active when Mail crashed.
Then press the Delete key on your keyboard. Or click Message > Move to > Trash.
Alternatively, if your Mail account offers a web-based service to check emails (most do such as gmail.com, iCloud.com, yahoo.com, etc), you can visit their website and sign in and then delete the corrupted email.
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See also: How To Turn Off Split Screen In Mail
Isolate the problem
Following the steps below will help you find the problematic mail account. Here is how:
On your Mac, go to System Preferences and Internet Accounts.
Disable all email accounts by unchecking the Mail option.
Now all of your Mail accounts are disabled, try to open Mail. Does the app crash or not?
If it opens without crashing, this means that one of your accounts are causing this problem. What you can do is to turn each account on one by one and test Mail after turning on each account. Repeat this until you find the account that is causing this. And when you find the problematic account, what you can do is to delete the account and then re-add.
If Mail crashes, turn on all of your accounts and go to the next step below.
See if you can start Mail in Safe Mode
Safe Mode (also called Safe Boot) may fix your problem. Safe Mode clears caches and repairs disks. Here is how:
Turn off your Mac.
Turn on your Mac and immediately press and hold the Shift key.
Keep holding the Shift key until you see the login screen.
Login.
When your Mac finishes starting up, now try to open the Mail app. Does it crash or not?
Restart your Mac again. This time restart normally. Do not press any keys. This will exit Safe Mode.
Again test Mail.
See also: Mail App Keeps Crashing & Won’t Open; Fix
Delete preference files
If the Mail preference files are corrupted for some reasons, this may cause crashes. Please note that when you remove these files, your account settings and preferences will be gone. Here is how:
Quit Mail.
Go to your desktop and press and hold the Option key.
In the Finder, while holding the Option key, click Go and then Library.
Open the Preferences folder.
Locate these two files: com.apple.mail.plist and com.apple.mail-shared.plist
Move these files to the Trash.
Restart your Mac.
Then try to open Mail to see if it works.
Remove Envelope files
We will delete Envelope files, you Mac will automatically build them. Here is how: Use burn app mac.
Quit the Mail app if it is running (Mail > Quit Mail).
In the Finder, press and hold the Option key and click Go > Library.
Open the Mail folder.
Open the V7 folder (this may be V5, V6, V7, V8, etc depending on your macOS version).
Open the MailData folder.
Locate these files: Envelope Index, Envelope Index-shm, Envelope Index-wal.
Move these files to your desktop.
Now open the Mail app. Wait for the Mail app to rebuild new Envelope Index files. Please note that this may take time.
And if everything seems to be working, you can now delete the envelop files from the desktop.
Remove Mail Saved folder
Please follow the steps below. Doing so will delete the Mail Application Saved State folder. A Saved Application State folder is a kind of cache folder that enables an app (in this case, this is Mail) to resume and reopen again. And this folder may cause your problem. Here is how you can remove this.
Quit Mail.
Go to the Finder.
Press and hold the Option key and while holding the Option key, click Go and Library.
Open the Containers folder.
Open the com.apple.mail folder
Open the Data folder.
Open the Library folder.
Open the Saved Application State folder.
Find the “com.apple.mail.savedState” folder and drag this folder to the Trash.
Then reopen the Mail app.
Reset NVRAM
Resetting NVRA (or PRAM) may resolve your problem. Resetting this will remove some of your settings such as volume, time zone, etc. Here is how:
Mail App On Mac Keeps Opening Windows 10
Turn off your Mac.
On your keyboard, locate these four keys: Option, Command, P, and R (do not press them yet).
Turn on your Mac and immediately press and hold the Option, Command, P, and R keys.
Keep holding these keys for 20 seconds. Then release the keys.
Mail App Keeps Opening
Remove Mail container
If you are still having this problem, you may want to remove the container folder. When you remove this folder, you will lose some settings such as mail filters, signatures, etc. Here is how:
Mac Os Mail Keeps Opening
Quit Mail.
Go to the Finder.
Press and hold the Option key and while pressing the key, click Go and Library.
Open the Containers folder.
Find the “com.apple.mail” folder.
Now move this folder to your desktop. We are moving to the desktop so that you can easily restore the folder if needed.
Now open Mail. If it opens, your issue is fixed.
If it still crashes, you can put the container folder back. And maybe it is time to contact Apple support.