How to stop my iphone logging into my old work account on Microsoft when I try to log in?

Rhoda Yates 20 Reputation points
2026-01-29T10:43:36.5266667+00:00

Why does my iphone automatically try to log me into my old work account that was set up by the college for me when I try to log into 365 on my new work account which is also managed by my employer? How do I get the software to go straight to the correct server as I don't have access to my old work account?

Microsoft 365 and Office | Other
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Jhun Buala 5,535 Reputation points Independent Advisor
2026-01-29T12:05:05.5133333+00:00

Hi Rhoda Yates,

Good day. I'm Jhun an independent advisor. This is happening due to the old work/school account is still registered on the device. So when you try to sign in to any Microsoft 365 work account, iOS still redirect or suggest the old tenant. Try to do these steps below in order, and let's see if it will fix the issue.

A. Remove the old work account from iOS itself.

  1. Settings > Mail.
  2. Accounts.
  3. Look for: Exchange Microsoft 365 Work or School account
  4. Tap the old college account.
  5. Delete Account.

B. Remove device management profiles.

  1. Settings > General.
  2. VPN & Device Management.
  3. If you see anything with the college name, tap it or remove management.
  4. If this exists, Microsoft will always try the old tenant first.

C. Sign out of Microsoft apps completely. Do this on each app, Outlook, Teams, Onedrive, etc.

  1. Open the app.
  2. Tap your profile icon.
  3. Sign out.
  4. Close the app, swipe it away.

D. Clear Safari Microsoft cookies.

  1. Settings > Safari.
  2. Advanced > Website Data.
  3. Search for: microsoft live.com office.com
  4. Delete those entries.

E. Restart Iphone.

D. Sign in the right way. Do not open Outlook first.

  1. Open Safari.
  2. Go to https://portal.office.com
  3. Sign in with your new work email
  4. Confirm it goes to the correct organization
  5. Only after that, open Outlook,Teams, OneDrive and sign in. This anchors the correct tenant first.

I hope this helps.

Regards,
Jhun

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  1. AI answer

    2026-01-29T10:43:46.45+00:00

    To stop your iPhone from automatically logging into your old work account when trying to access Microsoft 365, you can follow these steps:

    1. Remove the Old Account: Go to the Settings app on your iPhone, scroll down to "Mail" or "Accounts & Passwords," and look for the old work account. Select it and choose the option to delete or remove the account.
    2. Clear App Data: If you have the Microsoft 365 apps installed (like Outlook or Teams), you may need to sign out of those apps as well. Open each app, go to settings, and sign out of the old account.
    3. Restart Your Device: After removing the old account and signing out of the apps, restart your iPhone to ensure that all settings are refreshed.
    4. Sign In to the New Account: Now, when you open the Microsoft 365 apps or try to log in via a browser, it should prompt you to enter your new work account credentials instead of automatically logging into the old account.

    If you continue experiencing issues, consider checking if there are any saved credentials in your browser or password manager that might be causing the automatic login.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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