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iPhone how-to

How to set up email on an iPhone, including work Exchange accounts

The iPhone’s Mail app sets most accounts up from just your email address and password. Work accounts on Exchange or Microsoft 365 add a choice that trips people up — and some businesses require the Outlook app instead. Here is which to use, and how.

  • Updated 5 October 2026
  • 2 minute read
  • Written by our UK engineers

Work email on Exchange or Microsoft 365

  1. Open Settings → Apps → Mail → Mail Accounts → Add Account.
  2. Tap Microsoft Exchange.
  3. Enter your email address and a description (for example “Work”), then tap Next.
  4. Tap Sign In to let the iPhone find your account automatically, and enter your password — on Microsoft 365 this opens Microsoft’s sign-in page, including any multi-factor prompt.
  5. If it cannot find your account, go back and tap Configure Manually instead. Enter your password and, when asked, the server name your email provider gives you.
  6. Choose what to sync — Mail, Contacts, Calendars, Reminders and Notes — and tap Save.

Other business email (IMAP)

  1. Open Settings → Apps → Mail → Mail Accounts → Add Account.
  2. Tap Other → Add Mail Account.
  3. Enter your name, email address, password and a description, then tap Next.
  4. If the iPhone cannot find the settings, choose IMAP and enter the incoming and outgoing server details from your provider.
  5. Tap Save.

Choose IMAP over POP if you are given the choice: IMAP keeps your phone and computer in step, while POP downloads mail to one device. Neither syncs calendars or contacts — that needs Exchange, Microsoft 365 or Google Workspace.

The Outlook app instead

Microsoft’s free Outlook app from the App Store works with Microsoft 365, Exchange, Gmail and most other accounts. Some businesses require it, because it lets IT protect company data on personal phones — if adding your account to the built-in Mail app fails with a message about your organisation’s policies, that is usually why. Otherwise, use whichever you prefer.

Common problems

  • Keeps asking for the password: the password has changed, or your organisation needs multi-factor sign-in. Delete the account from the iPhone and add it again using Sign In.
  • Calendar or contacts missing: open the account in Settings → Apps → Mail → Mail Accounts and check Calendars and Contacts are switched on.
  • Shared mailbox not showing: the iPhone Mail app does not show shared mailboxes the way Outlook does. See shared mailboxes on Mac, iPhone and Android.
  • “Cannot verify server identity”: the server’s certificate does not match its name. Do not accept it blindly — check with your email provider first.

Sources

Questions

Frequently asked

Should I choose Microsoft Exchange or Outlook.com when adding work email?

Microsoft Exchange. Outlook.com is Microsoft’s personal email service. Work and school accounts on Microsoft 365 or Exchange use the Microsoft Exchange option.

What server do I enter for Exchange on iPhone?

Usually none: Sign In finds it automatically. If you have to configure manually, your email provider or IT team will give you the server name. For Microsoft 365 the automatic route almost always works.

Why does my iPhone say my organisation requires the Outlook app?

Your business uses Microsoft’s app protection policies, which only work in Microsoft’s own apps. Install Outlook from the App Store and add your account there.

Is Exchange or IMAP better on an iPhone?

Exchange, if your email supports it: mail, calendars and contacts stay in sync with your computer and new mail arrives instantly. IMAP handles mail only.

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