Mac mail is a service used by many to manage their email. However, when mac mail not working, it can be frustrating. Here are ten possible reasons behind this problem. Hopefully, one of these will help you get your Mac mail back up and running.

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Why Does Mail Not Working On Mac?

In most cases, difficulties with Mail are caused by incorrect configurations or the need to upgrade the software. Mail can also become unresponsive due to erratic internet connections and mail service provider disruptions.

However, there are numerous instances of the program crashing or shutting unexpectedly, requiring the development of fixes and workarounds to ensure the Mail app functions properly.

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Know Causes Of Mac Mail Not Working Issue And Its Solutions

1. Mail Not Launching Since MacOS Update

If you recently updated your macOS and Mac mail app not working, it may be due to a software compatibility issue.

How To Fix: 

• Try launching mail-in Safe Mode.
• To do this, hold down the Shift key while opening the mail application.
• This will disable any third-party plugins that may be causing a problem.
• If mail launches successfully in Safe Mode, then the issue is likely due to a plugin compatibility issue.
• Try removing or updating your plugins to see if that fixes the problem.

2. Mac Mail Crashing Or Freezing

If Mac mail keeps crashing or freezing, it could be due to a corrupted preference file.

How To Fix:

If your Mac mail not responding, try creating a new preference file

• To do this, quit mail and then open Finder.
• Next, go to the Library folder and find the Preferences folder.
• Inside this folder, locate the com.apple.mail.plist file and delete it.
• Then relaunch mail and see if the issue has been resolved.

3. Can’t Send Or Receive Email

If you’re having trouble sending or receiving emails, it could be an incorrect account setting.

How To Fix:

• Open mail and go to Preferences.
• Select the Accounts tab and then select your account.
• Next, click on the Server Settings button and ensure that the Outgoing Mail Server (SMTP) is set to the correct server.

4. Not Receiving All Emails

If you’re not receiving all of your emails, it may be due to a filter that is blocking certain emails.

How To Fix:

• Go to Preferences and select the Accounts tab.
• Select your account and click on the mailbox Behaviors button.
• Check for the “Skip all inbox messages” box; it should not be checked. 

5. Mail Search Not Working

If the search function in the mail is not working, it may be due to a corrupted index file.

How To Fix:

• Open Finder and go to the Library folder.
• Find the mail folder and then locate the Envelope Index file.
• Delete this file and then relaunch Mail; it will work then. 

6. Attachments Are Not Working

If you’re having trouble sending or receiving attachments, it may be due to a security setting.

How To Fix:

• Open Preferences and select the Accounts tab.
• Select your account and click on the Security tab.
• Ensure that the “Allow apps downloaded from:” setting is set to “Anywhere.”

7. Not Receiving Notifications

If you’re not receiving notifications for new emails, it may be due to a setting in the Notifications panel.

How To Fix:

• Open System Preferences and select the Notifications panel. 
• Make sure that the “Allow Notifications” box is checked for mail.

8. Spam Filter Not Working

If you’re not receiving notifications for new emails, it may be due to a setting in the Notifications panel.

How To Fix:

• Open Preferences and select the Accounts tab.
• Select your account and click on the Junk mail tab.
• Ensure the “Enable junk mail filtering” box is checked. 

9. Not Able To Connect To The Mail Server

If you’re not able to connect to your mail server, it may be due to a firewall setting.

How To Fix:

• Open System Preferences and select the Security & Privacy panel.
• Click on the Firewall tab and ensure that the “Block all incoming connections” box is not checked.

10. Unknown Errors Occurred

If you’re receiving an unknown error message, it may be due to a software bug.

How to fix:

• Update to the latest macOS version.
• You can do this by going to the App Store and selecting Updates.
• If a new macOS version is available, it will show up here.
• If you’re still having trouble, you can contact Apple support for more help.

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Conclusion

These are the most common problems that can cause the mac mail app not working. If you are still facing Mac mail Not Working problems after trying all of the troubleshooting steps above, you may contact customer support for assistance from Limksys.