To remove an email address from the auto-complete list in Mac OS X Mail or macOS Mail: Open the Mail application in Mac OS X or macOS. Click Window in the menu bar and select Previous Recipients in the drop-down menu to open a list of individuals to whom you have sent emails in the past. In the Mail app on your Mac, select a mailbox in the Mail sidebar. Choose Mailbox Delete Mailbox. If you have problems deleting a mailbox on the server for an IMAP account, contact the provider of your account. When you delete a Smart Mailbox, the messages it displayed remain in their original locations.

Why is Mac Mail not working?

With a new macOS out there, some Mac users have encountered Mac Mail problems following an attempt to update to macOS Catalina.

If you are experiencing any of the problems listed below, we’ve got fixes to get your Mac Mail working as it should. Despite numerous improvements from the previous operating system, there weren't too many changes made to the Mail App in Catalina.

However, there have, and were numerous reports of the app crashing or unexpectedly quitting, which is why fixes and workarounds are currently needed to ensure the Mail app works as it should.

Here are a number of problems and 12 fixes for those who've encountered unexpected issues with Mac Mail.

1. Mail not launching since macOS Catalina update

This is one of the most common problems people keep encountering, and it seems the fix is pretty simple too.

Fix: Launch the Mac Mail app from your Applications

If Mail launches that way, drag the icon out of the Dock. Once that has vanished, drag the icon — a copy of it will be made —back into the Dock. Then close Mail and attempt to open it again via the Dock. Providing that works, your problem is fixed.

Tip: Control + Click the Mail app icon to reveal 'Open' command in the context menu.

2. Mail crashing or running slow

Now, if the above solution doesn't work and Mail is either crashing or running slowly, there are other ways you can get it working smoothly again. No one can be without access to email for too long!

Fix 1: Force Quit the Mail app

Do this the usual way, and if that doesn't work, move onto the next step.

Fix 2: Restart Mail using the Activity Monitor

1. Go to Activity Monitor through Spotlight, Siri or Utilities.
2. Type ‘Mail’ into the search function.
3. Now click on the X symbol to force close.
4. Attempt to restart the usual way - or take it out of the Dock and put it back in (fix #1), before trying to restart the Mail app.

Fix 3: Delete saved Mail states

If the solutions above don't work, let’s start to clear out some prior-state files on your Mac.

This requires going into your hidden Library folders.

1. Open Finder > Go to Folder..
2. Now hold the Option key and Select Library to open these folders.
3. Find this folder: Containers > com.apple.mail > Data > Library > Saved Application State

1. Within that, move this folder into Trash: com.apple.mail.savedState
2. Empty the Trash and try to restart Mac Mail the usual way.

Important: Back up the mentioned folder so you can put it back if something goes wrong.

If that has worked, you can restart Mail and it should be running smoothly. If not, there are other solutions below, and some that don't involve quite so much digging within Library folders and files - which aren't always so easy to find for those who aren't Mac power users.

3. Mail folders missing

In some cases, these problems have caused Mail folders to go missing - without those the app won’t work, so there are solutions to these that most users can manage without too much difficulty to get the Mail app working again.

Fix: Check your Mail Connections

1. Open the Mail app.
2. Go to the Window in the top menu and click on Connection Doctor.
3. This will show whether there are problems with connecting to the Mail app.
4. Now re-check account settings and delete and re-add your Mail account to reset this.
5. Your Mail app and every email should be accessible again.

4: Mail app is slow

Sometimes your Mail is slow because it has to deal with tons of open windows buried beneath other apps.

Fix: Merge Mail windows

Specifically for this your email client has a lesser-known command called 'Merge All Windows'.
Click on Mail > Window
Now, choose 'Merge All Windows'
Close the redundant windows to minimize the impact on your Mail's memory. Hopefully, it will get snappier.

Mac Os Delete Mail App

5: Mail app junk

As outlined above, there are a number of fixes for Mail not working. Some of them require a certain amount of technical confidence and know-how. It is also worth noting that deleting the wrong folder or file within Library could disable another app accidentally. But, luckily, there's a software that can do all the fixing for you.

Fix 1: Repair Mail settings with CleanMyMac X

CleanMyMac X is a Mac maintenance app that is notarized by Apple. It's developed by MacPaw, the makers of various productivity tools for Mac. The latest version of CleanMyMac has tools that help you troubleshoot Mail, beyond other things.

1. Download CleanMyMac X free edition.
2. Click on Mail Attachments.

Now, if you click Scan, the app will search for unnecessary files in Mail it can delete.

Now open Mail again — it should be working as good as new.

Fix 2: Reset the Mail App (nuclear option)

One of the quick fixes that works in 99% of the cases is to “reset” the Mail App. I use CleanMyMac X for this operation. It doesn’t delete the program itself but brings it back to its default state. This operation solves many app conflicts and incompatibilities. Also, your user files stay safe and are not being affected.

To enable this feature you need to do one preliminary step: open CleanMyMac X Preferences.

Have you installed CleanMyMac X? Ok, let's go.
Click CleanMyMac X (in the upper menu) > Preferences.
Click on Ignore List and choose Uninstaller.
Uncheck 'Ignore system applications' box.

We've just allowed CleanMyMac X to reset your Mail app.

The reset procedure:

1. Launch the Uninstaller tool in CleanMyMac X.
2. Choose Mail app in the list of Apple apps.
3. Click on the Uninstall button with arrows — this reveals the Reset button.
4. Click Reset.

As we mentioned above, CleanMyMac X is a really useful Mac performance improvement app. It comes with a whole load of features and tools that improve how a Mac runs, and can get your Mail app up and running again without stress or it taking very long. Hope you are receiving mail again — stay tuned for more Mac tips.

• 1. Mac Files Tips
• 2. Mac Software
• 3. Mac Storage Tips
• 4. Mac Troubleshooting
• 5. Mac OS

by Anna SherryUpdated on 2020-03-12 / Update for Mac OS

Apple’s Mac is pretty popular among several users due to its advanced functionality and performance. MacOS Catalina is the latest update which aims at enhancing the user’s experience by upgrading the existing features and fixing several bugs. This new upgrade has also brought about several enhancements in the Mail function used on Mac systems as well. Several people upgraded their Mac system to MacOS Catalina to enjoy the advanced features.

However, once done, they experienced several Mail problems in Catalina. Mac system users got very disappointed with these constant problems in using Mail. If you are one among them, you no longer need to worry about it. We bring you the best ways in which you can fix the Mail problems on MacOS Catalina with little effort.

Part 1: Have You Run into Mail Problems in Catalina?

Before we move on to look into each of the methods in which the Mail problems in Catalina can be fixed, let’s see the most common Mail problems reported by Catalina users.

• Mail crashed immediately after the MacOS Catalina update.
• Apple Mail Search is not functioning properly in Catalina.
• After Catalina upgrade several mails have been lost.
• Text body is not missing after the Catalina upgrade.
• The messages on Mail are not loading after updating to Catalina.
• Mail stuck in outbox in Catalina.
• Mailboxes are missing from the Mail application after Catalina upgrade.
• Data in trash can be retrieved to view after the Catalina upgrade.
• Junk emails which were moved into inbox have disappeared after Catalina update.
• Mails are not getting deleted in Catalina.
• VIP Mails are not working on Catalina.

Part 2: Easy Ways to Fix Mail Problems in Catalina

If you are facing any of the Mail problems listed above, you can make use of the following methods to fix the Mail app on your Catalina upgraded Mac system.

Method 1: Restart Your Mac and Open Mail Again

The best way to fix any kind of technical issues on Mac, you can try restarting it in the following way.

/camera-app-for-macs.html. You can press the power button on your Mac and click the restart button when prompted, or select the Apple key and then click on Restart option or you can press the keys Control+Command+Eject.

After doing this, open the Mail app and check if the problem persists.

Method 2: Hold Down the Shift Key While Clicking Mail

Certain keys on your Mac system seem to solve several problems on your Mac. When you face the issue of the mail app not working properly on your Mac after the Catalina upgrade, you can try holding down the Shift key while clicking on the Mail app. After doing this check if the Mail app is functioning normally again.

Method 3: Safe Mode to Fix Mail Problems in Catalina

Another way to troubleshoot common Mail problems in Catalina is by rebooting it in Safe Mode. you can do this in the following way.

Press the Shift key on your Mac and hold it while your Mac boots. Once you see the Apple logo and a progress bar on the screen, you can let go of the Shift key.

Open the Mail app now and check if the issue persists. If the issue still persists, the problem may be with the Gmail account which you are using on the Mail app. You can turn off the Gmail account from System Preferences and check if the Mail app functions normally or not.

Method 4: Test in Another User Account on Mac

The issue may be with your email ID and not the Mac system at all. You can check this by adding another user’s email ID or any other email ID in the system and check if the Mail problem persists with this. You can do this by following the method given below.

• Step 1: From the Mail app on Mac, click on “Mail” and select “Add Account” from the drop down menu.
• Step 2: Select the mail service provider and click on “Continue”.
• Step 3: Key in the name, email address and password and click on “Sign In”.

After the account has been added, check the functioning of the Mail app when used for this account.

Method 5: Rebuild Mailboxes in Mail on Mac

When there are too many emails on the Mail app, it gets bloated and starts giving issues. To fix this, you can rebuild the mailboxes in the following way.

• Step 1: Launch the Mail app, select any one of the mailboxes you wish to rebuild and click on the menu of Mailbox.
• Step 2: From the pane’s bottom, select “Rebuild” option.
• Step 3: Repeat this process for each of your mailboxes.

The entire process may take anywhere from a few minutes to several hours for completion depending upon the amount of emails in the mailbox.

Method 6: Using Finder to Remove Mail Folder

If there is too much space occupied by the attachments in your Mac’s Mail app, even then the problems like these may occur in the Mail app. In order to delete or remove the Mail downloads folder, you can follow the steps given below.

• Step 1: From the Finder window, key in “Mail Downloads” in the search bar and hit the Enter key.
• Step 2: Open this folder and select all the folders you wish to delete and click on “Delete”.

This will clear up space in your mailbox in the Mail app and the app may start functioning normally again.

Part 3: Complicated Ways to Fix Mail Problems in Catalina

The above methods were the easy ways in which you could solve the Mail problems on your Mac after the Catalina upgrade. If in case the problem has still not been solved, you can try out the below complicated ways to fix the issue.

Method 1: Quit Mail and Operate Commands

You can quit Mail app and operate a few commands in order to regain the normal functionality of the Mail app on your MacOS Catalina system. You can do this in the following way. How to log out of twitter app on mac.

• Step 1: From “Finder”, go to “Folder” and copy & paste the following command.~/Library/Containers/com.apple.mail
• Step 2: Highlight the entire content of this folder.
• Step 3: After this, right-click and select 'New Folder with Selection'. But, do not move the new folder from this current location. You can then close the Finder window.

Restart your Mac and test the functioning of Mail app.

Method 2: Open Terminal.app to Fix

Delete Mac Os Update Files

• Step 1: Quit Mail.app
• Step 2: Open Terminal.app
  • 1.Stop and Flush Indexation: sudo mdutil -i off -E /
  • 2.Verify the status: sudo mdutil -s /
  • 3.Restart it: sudo mdutil -i on /
  • 4.Verify the status again: sudo mdutil -s /
• Step 3:Clear the Mail.app indexes. From the Finder > Goto Menu > Go to folder: '~/Library/Mail/V7/MailData'. Or you can From the Terminal.app: 'open ~/Library/Mail/V7/MailData' , then trash and empty the Trash. (They will be rebuild after relaunching Mail.app)
• Step 4: Restart your Mac. Re-open Mail.app.

Best Mac Os Apps

Part 4: If You Lose Mail After Catalina Update, How to Fix?

Mac Os Delete Key

One of the major problems which you may face in the Mail app of Mac is that you may be losing the mails after the update. It is even possible that you lose a few mails after trying out the above methods to fix the Mail app. In such scenarios Tenorshare-UltData Mac Data Recovery comes to the rescue. This is an excellent tool through which you can recover any kind of lost of deleted data from your Mac system easily. You can use this tool in the following way to retrieve the lost of deleted emails from the Mail app.

Step 1 After downloading and installing the tool, launch it on your system and select a particular location on your system like the system hard drive and then click on “Scan”.

Step 2 From the options on the left, choose the relevant option and preview the emails which you wish to recover and click on “Recover” after making the selection.

Step 3 Select the location where you want the emails to be saved.

The recovered emails will then get restored in just three simple steps.

Conclusion

Mac Os Delete Application

After the Catalina MacOS upgrade several people have reported issues in their system’s Mail app. The above detailed solutions to fix any kind of Mail issues can be helpful in such a scenario. In case the problem you are facing is of lost or deleted emails from Mail app, Tenorshare-UltData Mac Data Recovery is the best tool to retrieve the emails in minimum time with minimum effort and hence this tool is highly recommended.