iCloud email not working

Hey CheesedOffWithIT,

To confirm, are you not receiving mail only from a specific source or are you now receiving no mail whatsoever?

Additionally, take a look over the tips outlined below:

• If iCloud Mail isn't working - Apple Support

"If you need help sending or receiving mail on your iPhone, iPad, or iPod touch

1. Check your Internet connection. Open apple.com in Safari on your iPhone, iPad, or iPod touch.
2. To see if you can receive mail for your iCloud email on another device, go to iCloud.com on a Mac or PC. 
3. Make sure that you turned on Mail in Settings on your iPhone, iPad, or iPod touch. Tap Settings > [your name] > iCloud and turn on Mail.
4. Make sure that new data is pushed to your device automatically. In iOS 14 or later, tap Settings > Mail > Accounts > Fetch New Data, then turn on Push. In iOS 13 or earlier, tap Settings > Passwords & Accounts > Fetch New Data, then turn on Push. 

• Send an email to your account to see if Push is working.
• In Fetch New Data, tap your iCloud account and turn on Push. You can only use Push with one account at a time. 

1. Turn your device off and back on. 
2. If you still can't send or receive mail, turn off the settings in steps 3 and 4, restart your device, then turn them back on. 

If you can't access iCloud Mail at iCloud.com

On your iPad, Mac, and PC, you can use iCloud Mail on iCloud.com. On an iPhone, use the Mail app instead. 

1. Make sure your browser is up to date. If you're using Safari, update Safari to its latest version. 
2. Clear your browser's cache. In Safari, choose Safari > Preferences. Click the Advanced tab. Select "Show Develop menu in menu bar", then close Preferences. Click the Develop menu, then select "Empty Caches." If you're using a different browser, check its help menu for steps. 
3. If you can access iCloud Mail from a different location or Internet connection, contact your Internet service provider (ISP) or network administrator. Some Internet configurations intentionally or unintentionally prevent access to certain websites or services, such as iCloud Mail."

Let us know if the issue persists from there.

Cheers!