New Outlook - Windows
Can't add an account to new Outlook?
The new Outlook for Windows connects to third-party mail like Gmail, Yahoo and other hosts mainly over IMAP (POP is supported too), and it insists on a modern sign-in. If it keeps rejecting your account, the fix is usually to make sure IMAP is on at your provider, use an app password if you have two-step verification, and rule out a work or school policy blocking personal accounts. Here's how, step by step - or we'll set it up for you remotely in minutes.
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Why new Outlook rejects your account
The new Outlook for Windows is a very different app from the classic desktop version, and it changed the rules for non-Microsoft email. Two things trip people up:
- It's built around IMAP for third-party mail. If you're adding Gmail, Yahoo, or an account from your web host, new Outlook connects over IMAP. Microsoft says POP accounts are supported too, though IMAP is the better choice if you read your mail on more than one device.
- It requires a modern sign-in. Just typing your normal password often isn't enough. If your provider uses OAuth, new Outlook expects to open the provider's own sign-in page; if it uses a password box and you have two-step verification switched on, it needs an app password rather than your everyday password.
When those expectations aren't met you'll see errors like "Invalid credentials", "Interaction required", or the account simply bounces back to the add screen. None of it means your password is wrong - it usually means the account isn't set up the way new Outlook wants to talk to it.
// WINDOWS PCS ONLY
We do not support Outlook on Apple Macs, iPads or iPhones. Apple does not allow our remote-support tool to take control of an iPad or iPhone (an Apple restriction), and our remote support covers Windows PCs only. On an Apple device, Microsoft’s own Outlook help is the place to start.
// FIX IT WITH ME · STEP BY STEP
Fix it with me, one step at a time
The steps from this guide, one at a time, in the order that fixes the most cases fastest. Tell it what happened and it shows the next step. Nothing here leaves your device.Last reviewed 18 October 2026
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01Make sure IMAP is on at your provider
Sign in to your email on the web and check IMAP access. Personal Gmail is always on with no toggle since early 2025, but Yahoo and some web hosts still have an IMAP switch you may need to turn on, since new Outlook connects to third-party accounts over IMAP.
Is it working now? -
02Use the standard sign-in
In Outlook go to Settings, Accounts, Email accounts, Add account, enter your address and let your provider's own sign-in page open rather than choosing advanced or manual setup.
Is it working now? -
03Create an app password if you use 2-step verification
If your account has two-step verification, generate a 16-character app password in your provider's security settings and paste that into Outlook instead of your normal password.
Is it working now? -
04Rule out a work or school policy
On a company-managed laptop, check whether a Microsoft 365 admin policy is blocking personal accounts - if so, your IT administrator must allow it.
Is it working now? -
05Update Outlook and retry
Install the latest Outlook update, restart, and try adding the account once more, as some early add-account bugs have already been fixed.
Is it working now? -
06Fall back to classic Outlook
If a provider still refuses, use classic Outlook, which offers full manual POP and IMAP setup with server names and ports you can enter by hand.
Is it working now?
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Can't add an account to new Outlook? - the fix order (365techies.co.uk/outlook-cant-add-account-new-outlook/) 1. Make sure IMAP is on at your provider: Sign in to your email on the web and check IMAP access. Personal Gmail is always on with no toggle since early 2025, but Yahoo and some web hosts still have an IMAP switch you may need to turn on, since new Outlook connects to third-party accounts over IMAP. 2. Use the standard sign-in: In Outlook go to Settings, Accounts, Email accounts, Add account, enter your address and let your provider's own sign-in page open rather than choosing advanced or manual setup. 3. Create an app password if you use 2-step verification: If your account has two-step verification, generate a 16-character app password in your provider's security settings and paste that into Outlook instead of your normal password. 4. Rule out a work or school policy: On a company-managed laptop, check whether a Microsoft 365 admin policy is blocking personal accounts - if so, your IT administrator must allow it. 5. Update Outlook and retry: Install the latest Outlook update, restart, and try adding the account once more, as some early add-account bugs have already been fixed. 6. Fall back to classic Outlook: If a provider still refuses, use classic Outlook, which offers full manual POP and IMAP setup with server names and ports you can enter by hand. Still stuck? 365 Techies fix it remotely: 01202 775566 - https://365techies.co.uk/remote-support/// OR SKIP THE NEW OUTLOOK
The new Outlook won’t take your address?
Our free Techies One Mail for Windows PCs has the settings for BT, Sky, Plusnet, Gmail and Outlook.com built in: type your address and it fills them in.
- Free, from 365 Techies, the family IT firm that wrote this guide
- Signed by 365 Techies Ltd, and it tells you when there’s an update
- Big, clear buttons, and warnings about scam emails
- Your email goes straight between your PC and your provider: we never see it or your passwords
It uses the same password your provider gives email programs: Gmail, Yahoo, AOL and Virgin Media need an app password, and a closed or lapsed mailbox can’t be opened by any program. A work Microsoft 365 address may need your IT person to approve it. See what it does, with pictures.
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FOR WINDOWS 10 AND 11 PCs · VERSION 0.22.0 · 27 MB · NOT FOR MAC, IPHONE OR ANDROID
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The fix
How to add your account to new Outlook
- Make sure IMAP is on at your provider. Sign in to your email on the web and check IMAP access. Personal Gmail no longer has an on/off switch - IMAP is always on since early 2025, so there's nothing to enable there - but Yahoo and some web hosts still have an IMAP toggle you may need to turn on. If IMAP is switched off, new Outlook has nothing to connect to.
- Use the normal sign-in, not manual setup. In Outlook go to Settings, then Accounts, then Email accounts, and choose Add account. Type your email address and let it open your provider's own sign-in page. Avoid forcing IMAP or "advanced setup", because that path is what triggers the fiddly app-password prompts.
- Create an app password if you use two-step verification. If Outlook shows a plain password box instead of your provider's own sign-in page, and the account has 2-step verification, your ordinary password will be refused. Generate a 16-character app password in your provider's security settings and paste that into Outlook instead. An app password only exists once 2-step verification is turned on.
- Check for a work or school policy. If this is a company laptop, an IT policy in Microsoft 365 can quietly block personal accounts from being added. If you hit a wall on a managed device, that's the likely cause - your IT administrator has to allow it.
- Make sure Outlook is fully updated. Some early add-account bugs in new Outlook have already been fixed, so install the latest update, restart, and try once more.
- Still stuck? Use classic Outlook. If a provider simply refuses to add, classic Outlook still has full manual POP and IMAP setup where you can type in server names and ports by hand. See the FAQ below for the standard IMAP ports.
// RELATED
More help with the new app on our Outlook problems hub, plus Microsoft 365 support and fast remote IT support across Dorset. Prefer to talk it through? Get in touch. If it’s a BT Internet address, see our dedicated fix: BT email won’t add to new Outlook.
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// GOOD QUESTIONS
Frequently asked
Does the new Outlook support POP accounts?
The new Outlook for Windows was rebuilt around IMAP for third-party mail, but Microsoft lists POP accounts as supported as well. If you specifically need POP - for example to keep a local copy and remove mail from the server - try adding it in the new Outlook first; if it won't connect, the classic Outlook desktop app still has full manual POP and IMAP setup.
What is an app password and when do I need one?
An app password is a 16-character one-off code your email provider generates so an app can sign in when two-step verification is switched on. If Outlook asks for a password rather than opening your provider's own sign-in page, and the account has 2-step verification, your everyday password won't work - you generate an app password in the provider's security settings and paste that in instead. App passwords only appear as an option once 2-step verification is enabled.
What are the correct IMAP ports if I have to set it up manually?
For a manual setup in classic Outlook, incoming IMAP is port 993 with SSL/TLS, and outgoing SMTP is port 587 with STARTTLS (some hosts also allow 465 with SSL/TLS). Always check your provider's current documentation, as a few hosts use their own values.
I'm on my work laptop and it won't add my personal Gmail. Why?
On a company-managed device, a Microsoft 365 admin policy can block personal accounts from being added to Outlook. This is a deliberate security setting, not a fault. Your IT administrator would need to change the policy - it's not something you can override from the app.
It keeps saying 'invalid credentials' even though my password is right.
That message almost always means Outlook needs a modern sign-in rather than your typed password. Remove the half-added account, restart Outlook, add it again and let the provider's own sign-in page open. If your account uses two-step verification, use an app password instead of your normal one.
Can 365 Techies just set this up for me?
Yes. We're a Bournemouth-based Microsoft Partner. We'll phone you first, connect with your permission so you can watch your screen the whole time, add the account correctly, and disconnect the moment it's working - usually within minutes. Call 01202 775566.
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