Having trouble with your iCloud Mail

Some common IMAP & POP-related issues that iCloud users may experience include difficulty setting up an email account, problems sending or receiving emails, wrong password errors, and email sync issues. These issues can usually be resolved by double-checking the settings and configurations in your email client or device, ensuring that your account is properly configured with the correct IMAP or POP settings, and enabling two-factor authentication to enhance security.

Causes

• Incorrect email settings, including the wrong server information, username, or password.
• Outdated or incompatible email client software.
• Issues with the device's internet connection or network configuration.
• Problems with the iCloud server itself or maintenance activities.
• Security issues, such as using an unsecured connection or an outdated app-specific password.

Solution 1: Make sure IMAP/POP is enabled in iCloud settings

1. Go to the iCloud official website and sign in to your account.
2. After that, tap on the Mail icon to open your mailbox.
3. Next, press the gear icon and select Preferences from the drop-down menu.
4. Now, go to the Accounts tab and make sure the Enable this account option is selected.
5. Select the Advanced tab and check the boxes next to Enable IMAP and Enable POP.
6. In the end, you have to hit the Save button to apply the changes.

Solution 2: Check if the incoming and outgoing mail server settings are correct

1. As your initial step, open the Mail app on your device.
2. Depending on your device, go to the Preferences or Settings menu.
3. After that, select the Accounts or Email Accounts option.
4. Next, choose your iCloud account from the list of available accounts.
5. Now, you need to tap on the Advanced or More Settings option.
6. Check that the incoming mail server is set to imap.mail.me.com and the outgoing mail server is set to smtp.mail.me.com.
7. Confirm that the username and password sections are filled correctly.
8. Then, save any changes you made and close the settings window.
9. Try sending or receiving a test email to ensure the settings are correct.

Solution 3: Disable any antivirus or firewall software program temporarily

1. Firstly, open the antivirus or firewall software program on your PC.
2. Next, locate the option to disable the program temporarily or turn off protection.
3. After that, select the option and confirm that you want to disable the program.
4. Try accessing your iCloud email account and check if the issue with IMAP/POP is fixed.
5. Once you have confirmed that the issue is fixed, re-enable the antivirus or firewall program.

Solution 4: Clear the cache and cookies of the web browser or email client

1. Open your browser or email client and go to the settings or preferences section.
2. Next, look for the option to clear cache and cookies, usually in the privacy or security section.
3. Now, select the option to clear cache and cookies and follow the steps to confirm the action.
4. Once the cache and cookies have been cleared, close the browser or email client and reopen it.
5. Lastly, attempt to access your iCloud email account again and see if the issue has been fixed.

Solution 5: Try accessing the email account on a different device or network.

1. In the beginning, log out of your iCloud email account on the current device.
2. On a different device or network, open your email program or webmail interface.
3. After that, log in to your email account using your correct credentials.
4. Check your inbox and send a test email to confirm that the account is working correctly.
5. If the account works on a different device or network, there may be an issue with the previous device or network's settings or configuration. 
6. Contact the device or network's support team for further assistance.