Fix Outlook Mail Not Working on iPhone
Update The iOS
Go into the phone’s “Settings” Click on “General” then select “Software Update” If there is a new update available, click “Download and Install” This will start the iOS update process.
Network Settings
Reset Network Settings by following this method “Settings” : [name] : “General” : “Reset” : “Reset Network Settings” This will Reset the network settings and hopefully fix the issue.
Reboot iPhone
Press and hold the side button until the power off slider appears. Restart the iPhone and check if the problem is resolved.
Disable ‘Do Not Disturb’
Tap settings. Click “Do Not Disturb” and turn it off.
Check Mail Settings
“Settings”: [name] : “Account & Passwords”. Select Outlook and then click the email account option. Check the settings. In addition, also choose the “No Limit” option in “Mail Days to Sync” in the mail settings.
Re-Login In Outlook
Go To “Settings”: [name] : “Account & Passwords” Select the email account and click “Delete Account”. Confirm delete account. Select “Add Account”: “Outlook” Enter the mail id and password to log in again.
Re-Install Outlook
Long press the Outlook app icon on the home screen. A delete icon should pop up over it. Select the option and confirm the delete. Visit the App Store and re-install Outlook.
This is how users can fix the Outlook mail not working on the iPhone issue. If you’re having problems using Hotmail on your iPhone, here’s a quick fix: Hotmail Not Working On iPhone: How To Fix It?