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Exchange Connection Problems

How to Fix Repeated Exchange Password Prompts on iPhone

Steve KSteve K Oct 10, 2026 869 views

Question details

The user is repeatedly prompted to enter their Exchange account password on an iPhone, despite entering the correct Microsoft 365 or Outlook.com credentials.

How to Fix Repeated Exchange Password Prompts on iPhone
Product
Microsoft Exchange / Outlook.com
Device & OS
iPhone
Scenario
Accessing email inboxes through the mail client on an iPhone.
Observed behavior
A 'wrong password for your Exchange account' message persistently appears on the iPhone, even after resetting the password and verifying that the account works properly on a Windows laptop.
Before you start

Verify that you know your current Microsoft account password and ensure your iPhone is connected to a stable Wi-Fi or cellular network before making changes to your account settings.

Solution 1Recommended

Remove Obsolete or Inactive Exchange Accounts

If you previously connected an organizational or charity account that is no longer active, removing it from your iPhone can permanently stop the repeated password prompts.

Often, forgotten or expired accounts from past affiliations (such as retired work or charity accounts) remain cached on the device. When the iPhone attempts to sync with these inactive servers, it continuously prompts for a password.

1
Open iPhone Settings

Navigate to the home screen of your iPhone and tap on the 'Settings' app.

2
Access Mail Accounts

Scroll down and tap on 'Mail', then select 'Accounts' to view all email accounts linked to your device.

3
Identify the Obsolete Account

Review the list for any old work, school, or charity Exchange accounts that you no longer have active access to.

4
Delete the Account

Tap on the obsolete account and select 'Delete Account' to remove it from your iPhone.

5
Re-add Personal Account (If needed)

If you accidentally removed your personal account, tap 'Add Account', select 'Microsoft Exchange' or 'Outlook.com', and sign back in using your current credentials.

Remove Obsolete or Inactive Exchange Accounts
Sync Restored: Once the inactive accounts are removed, your iPhone will stop attempting to authenticate them, resolving the continuous password pop-ups.
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Frequently Asked Questions

Why does my iPhone keep asking for my Exchange password even when it's correct?

This commonly happens when an obsolete or inactive account (such as a previous work or charity account) is still linked to your device, when server settings have changed, or when there is an ongoing Microsoft service outage.

Does resetting my Microsoft password fix the Exchange prompt on my iPhone?

Not always. If the issue is caused by a disconnected organizational account or a server glitch, a password reset will not resolve the prompts until the problematic account is removed from your device or the service outage is resolved.

How do I remove an old work or charity Exchange account from my iPhone?

Go to Settings > Mail > Accounts on your iPhone, select the obsolete Exchange account from the list, and tap 'Delete Account' to remove it and stop the authentication prompts.

What should I do if Outlook.com is experiencing an outage affecting iOS?

If Microsoft officially reports an outage affecting Exchange connections on iOS, you will need to wait for their engineering team to resolve the server-side issue. You can monitor the status via the Microsoft Service Health dashboard.