How to add Outlook to your iPhone

You can add an Outlook email account to your iPhone through the Settings app without downloading the Outlook app itself. The phone's built-in Mail app will handle your messages, calendar, and contacts. The process takes about five minutes and works whether your account is Outlook.com, Hotmail, or a work account through Microsoft 365.

Your iPhone will ask for your email address and password, then handle the technical setup automatically. If you use two-factor authentication on your Outlook account — which you should — you'll need to generate a special app password first. This is a separate password that only works for Mail on iPhone, not your actual account password.

Key Takeaways

  • Open Settings, tap Mail, then Accounts, then Add Account, and choose Microsoft Outlook from the list.
  • If your Outlook account has two-factor authentication turned on, you must create an app password in your Microsoft account settings before iPhone will accept it.
  • The iPhone Mail app syncs your inbox, sent items, calendar, and contacts automatically once the account is added.
  • If setup fails, restart your iPhone and try again — this solves most connection problems without needing to remove and re-add the account.

Before you start: check for two-factor authentication

Two-factor authentication is a security feature that requires a second verification step when you sign in — usually a code sent to your phone or generated by an authenticator app. If you have this turned on for your Outlook account, your iPhone cannot sign in with your regular password. You must create an app password instead.

To check whether you have two-factor authentication: go to account.microsoft.com in a web browser, sign in, and look at the left menu for "Security". If you see "Two-step verification is on", you need an app password. If it says "off" or you don't see this option, skip to the next section and use your regular password.

To create an app password, stay on the Security page and look for "App passwords" (this only appears if two-factor authentication is on). Click it, select "Mail" and "iPhone" from the dropdown menus, and Microsoft will generate a 16-character password. Write this down or copy it — you'll need it in a moment.

Adding the account through Settings

Open the Settings app on your iPhone. Scroll down and tap Mail. Tap Accounts, then tap Add Account. You'll see a list of email providers. Tap Microsoft Outlook.

Enter your full Outlook email address and tap Next. On the password screen, enter your password. If you created an app password in the previous section, use that instead of your regular password. Tap Next.

iPhone will connect to Microsoft's servers and verify your account. This usually takes 10 to 30 seconds. Once it succeeds, you'll see a screen asking which information to sync: Mail, Contacts, Calendars, and Notes. Leave all of these checked unless you have a reason to turn one off. Tap Save.

What happens after you add the account

Your Outlook email will now appear in the Mail app. The first sync may take a few minutes if you have a large inbox — iPhone downloads your recent messages in the background. You'll see your Outlook calendar in the Calendar app and your Outlook contacts in Contacts.

By default, Mail will check for new messages every 15 minutes. If you want to change this, go back to Settings, tap Mail, tap Accounts, tap your Outlook account, and look for "Fetch New Data". You can set it to check more or less frequently, or turn on Push if your account supports it (most do) to get messages when ready.

Troubleshooting if setup fails

The most common problem is an incorrect password. If you have two-factor authentication, make sure you're using the app password Microsoft generated, not your regular account password. Copy and paste it directly from where you saved it — these passwords are long and straightforward to mistype.

If the password is correct but setup still fails, restart your iPhone. Press and hold the power button until "Slide to power off" appears, slide it, wait 10 seconds, then press the power button again to turn it back on. Try adding the account again.

If you see an error about "invalid credentials" after restarting, your account may have a security setting that blocks mail apps. This is rare but happens with some work accounts. In that case, you may need to use the Outlook app instead — read it from the App Store and sign in there. The Outlook app works the same way as Mail but is made by Microsoft.

Using Outlook calendar and contacts on iPhone

Once your account is added, your Outlook calendar appears in the Calendar app automatically. Any events you create in Calendar will sync back to Outlook. Your Outlook contacts appear in the Contacts app and work the same way.

If you want to see only your Outlook calendar and hide other calendars, open Calendar, tap the Calendars button at the bottom, and uncheck the calendars you don't want to see. The same works in Contacts — you can filter by account in the Groups section.

Removing the account later

If you need to remove your Outlook account from your iPhone, go to Settings, tap Mail, tap Accounts, tap your Outlook account, and tap Delete Account at the bottom. Choose whether to keep or delete the data on your phone. This does not affect your actual Outlook account — it only removes it from this iPhone.

You can add the account back at any time by repeating the steps in the "Adding the account through Settings" section. Your messages will sync again once you sign back in, though older messages may take time to read depending on your inbox size.

Frequently Asked Questions

Can I add multiple Outlook accounts to the same iPhone?

Yes. Repeat the steps for each account. They'll all appear in Mail, and you can switch between them by tapping the Accounts button at the bottom of the inbox. Each account syncs separately.

Why does my password keep getting rejected?

If you have two-factor authentication on, you must use an app password, not your regular password. Go to account.microsoft.com, find App passwords under Security, and generate one for Mail and iPhone. Regular passwords will not work with two-factor authentication turned on.

Will my emails delete from Outlook if I delete them from iPhone Mail?

Yes, by default. Mail and Outlook stay in sync, so deleting a message in Mail also deletes it from Outlook.com. If you want to keep messages in Outlook but remove them from your phone, move them to a folder instead of deleting them, then hide that folder in Mail settings.

Does the iPhone Mail app work with work Outlook accounts?

Usually yes, but some companies restrict which apps can connect. If setup fails with a work account, ask your IT department whether Mail is allowed. If not, you'll need to use the Outlook app instead.

How do I know if my account is syncing correctly?

Send yourself a test email from another account. It should appear in iPhone Mail within a few minutes. If it doesn't show up after 10 minutes, go to Settings, Mail, Accounts, and tap your Outlook account to check the Fetch New Data setting — it may be set to Manual instead of Automatic.