MCP claude.ai Microsoft 365 connector rejects personal Microsoft accounts (Hotmail/Outlook.com/Live)

Claude MCP for Azure DevOps is broken due to the same cause: it can't log in to the DevOps server with a personal account

This is still an issue, highly reduces functionality of some solutions being offered.

This is still an issue.

I'd love to use Claude with my Outlook personal accounts - it's great to have Gmail as an option, but there are thousands of users who started with Hotmail/Outlook and are diehards and not willing to switch to another email provider. Based on the commentary above, this seems like a fairly easy and quick fix to update the OAuth files.

Ran into this today trying to connect my personal Microsoft 365 subscription (paid, consumer plan) via Cowork. The OAuth flow rejects personal accounts with "you can't sign in here with a personal account" — same root cause as described here.
This feels like a significant gap given how many individuals use Microsoft 365 Personal/Family rather than a work tenant. Changing signInAudience to AzureADandPersonalMicrosoftAccount in the app registration would cover both cases. Happy to test if a fix is rolled out.

Retested this today (2026-07-15) right after the latest Claude Desktop update. Update notes list several MS365-connector auth fixes (Company Portal sign-in, corporate TLS-inspection networks, admin-consent prompt on restrictive tenant policies), but none of those touch this issue — same rejection as before: "You can't sign in here with a personal account. Use your work or school account instead."

For whoever picks this up: the OAuth request scopes api://07c030f6-5743-41b7-ba00-0a6e85f37c17/.default (via client 08ad6f98-a4f8-4635-bb8d-f1a3044760f0) — so it's specifically the resource app 07c030f6-... (not just the client) whose signInAudience needs to change to AzureADandPersonalMicrosoftAccount. Worth checking that resource app's registration directly if the client-app setting already looks correct.

I would also like this as an option. This would extend functionality to my iPhone and iPad.

Big impact for my use cases too.

I'm hitting this too. Trying to connect the Microsoft 365 connector in Claude with a personal Hotmail/Outlook.com account and getting the same error: "You can't sign in here with a personal account. Use your work or school account instead."

This is a real gap for individual/personal-plan Claude users — plenty of us use Outlook.com/Hotmail as our primary personal email and have no work/school Microsoft 365 tenant to fall back on. Re-registering the OAuth app with signInAudience = AzureADandPersonalMicrosoftAccount (as suggested above) seems like the right fix and wouldn't affect existing work/school account behavior.

Would appreciate a status update or workaround from the Anthropic team if this is on the radar.

+1 for supporting personal Microsoft accounts. I'm on a Microsoft 365 Family plan and use Outlook as my main mail client, but the connector rejects personal accounts at sign-in. With Gmail's POP fetching discontinued in Jan 2026 and Yahoo forwarding now paywalled, there's no free way left to aggregate personal mail into a connected account — supporting AzureADandPersonalMicrosoftAccount in the OAuth registration would fix this for a lot of home users.

would also like to see this sorted. CoPilot has ability to 'connect to outlook' which allows for reading email and calendar on personal or family accounts and so its frustrating that claude does not.

Confirming I am hitting this same issue. The Microsoft 365 connector rejects personal Microsoft accounts (@outlook.com/@hotmail.com/@live.com) with: "You can't sign in here with a personal account. Use your work or school account instead."

The fix identified above is correct. The OAuth app registration needs signInAudience set to AzureADandPersonalMicrosoftAccount instead of AzureADMyOrg/AzureADMultipleOrgs. Microsoft's platform already supports personal accounts under this setting — this is a one-time Azure app registration change on Anthropic's side.

This issue has no assignee and no linked PR. Requesting this get prioritized. Individual users on personal Microsoft accounts currently have no path to connect Outlook, OneDrive, or Calendar through this connector at all.

I am starting to wonder if this is a design by choice scenario based around financial decisions.
Referral fees to Anthropic for Microsoft enterprise account, only smaller values for personal level accounts.

The lack of transparency/response is very disappointing from Anthropic for a service we pay for.

I fail to understand why we can't even get a response from Anthropic on this matter. Unless your company has a setup that already uses Claude in it, they aren't going to just allow people to connect to a company account without that. At home though, it's my account I can do what I want with it and Claude has become very integrated with my personal day to day setup and work. Not having that connection to my personal O365 is a massive gap. Just tell us what's going on at least so we can have the knowledge, Anthropic.

Do any other LLMs have the connection to personal O365? Maybe it's worth switching?

If you need a personal Outlook.com / Hotmail account in Claude right now, a custom connector with its own Microsoft sign-in gets around this. No admin or M365 tenant needed.

Disclosure: I run the company that makes one, Multi Mail. It's in the connectors directory now, or set up at https://lumman.co/mcp. Reads, searches, drafts and sends, and it opens attachments too (PDFs including scans, Word, Excel, PowerPoint), so Claude sees what's inside the file, not just its name. First two mailboxes are free.