Hello Swede84,
We completely understand, and we'll do all we can to help. Try uninstalling and reinstalling the Mail app as described here to see if that resolves the issue: Delete built-in Apple apps from your iPhone, iPad, or Apple Watch - Apple Support
"When you delete a built-in app from your device, you also delete any related user data and configuration files. This can affect things like related system functions or information on your Apple Watch.
Built-in apps that you can delete from iPhone or iPad
If you have iOS 14 or later or iPadOS, you can delete these apps from your device:
- Activity7
- Apple Books1
- Apple TV
- Calculator7
- Calendar
- Clock
- Compass7
- Contacts2
- FaceTime3
- Files
- Find My5
- Health4 7
- Home
- iTunes Store
- Mail
- Maps1
- Measure
- Music1
- News (where available)
- Notes
- Podcasts1
- Reminders
- Shortcuts
- Stocks
- Tips
- Translate7
- TV (where available)
- Voice Memos
- Wallet
- Watch app6 7
- Weather

Delete a built-in app from your device
On your iPhone or iPad:
- Touch and hold the app.
- Tap Remove App from the shortcut menu.
- Tap Delete App from the submenu.
If you have Apple Watch, deleting an app from your iPhone also deletes that app from your Apple Watch.
On your Apple Watch:
- Press the Digital Crown to show all your apps on the Home Screen.
- Touch and hold the display until the View Options screen appears.
- Tap Edit Apps.
- Tap the Delete button
on the app that you want to delete, then tap Delete App to confirm. - Press the Digital Crown to finish.
If you delete a built-in app from your Apple Watch that is also on your iPhone, such as Contacts, the app isn't deleted from your iPhone.
Restore a built-in app that you deleted
- On your iPhone, iPad, or Apple Watch, go to the App Store.
- Search for the app. Make sure that you use the exact name of the app.
- Tap the Redownload button
. - Wait for the app to restore, then open it from your Home Screen.
If you have Apple Watch, restoring an app to your iPhone also restores that app to your Apple Watch."
We hope this helps.
Cheers!