Claude's Microsoft 365 connector won't make Outlook drafts? Here's why

1. The connector isn't switched on in this chat

Adding the Microsoft 365 connector in Settings doesn't turn it on in every chat. Open the tools or connectors menu under the message box and make sure it's enabled, then ask again.

2. You're using a personal Outlook.com, Hotmail or Live account

Claude's Microsoft 365 connector only works with work or school accounts, and personal accounts are refused. There's no setting that changes this.

3. A Microsoft admin hasn't set it up or turned drafting on

A Microsoft admin has to set up Claude's Microsoft 365 connector for your organisation, and its drafting tools only work once an admin has turned them on. If Claude can read your mail but not draft, this is the likely cause. Ask your IT team.

4. Drafts work, but without attachments, photos or your formatting

That's a limit of the connector, not a fault. Anthropic's help page says attachments aren't supported in its write tools, and only basic text styles are allowed, so photos, fonts and colours can't be added.

5. The sign-in has expired

After a password change, a security reset or a long break, the connection can stop working. In Claude, open Settings → Connectors, disconnect the Microsoft 365 connector and connect it again.

If you need what it can't do

If you're on a personal Outlook.com account, can't get an admin to turn drafting on, or need attachments and photos in your drafts, Claude's connector won't get you there. Draftbee is a separate custom connector for exactly that: it creates drafts from your own Outlook templates, with your files, photos and formatting, on every Claude plan. It works alongside Claude's connector, and it can never send. See can Claude attach files to Outlook emails? or set it up below.

Draftbee troubleshooting

Already using Draftbee? These are the usual fixes:

• Claude doesn't use it: switch Draftbee on in the chat's tools or connectors menu, and mention it by name: “Use Draftbee to…”.
• Work account asks for admin approval: when sign-in is blocked, Draftbee shows an approval link to send your IT team. They approve it once for everyone.
• “No templates”: put at least one email in an Outlook folder called “Templates”, or ask Claude to save an existing email as a template.
• “Subscribe to keep going”: your trial has ended. Subscribe from your account page; your templates are still in Outlook.
• Anything else: email support@draftbee.app with what you asked Claude and what it replied.

Set it up in five minutes

1. Sign in with Microsoft at app.draftbee.app. Your 14-day free trial starts, no card needed.
2. In Claude, go to Settings, then Connectors, then Add custom connector. Paste the link your account page shows.
3. Put an email you send often into an Outlook folder called “Templates”, with blanks like [Client name].
4. Ask Claude to use that template for someone. The draft appears in Outlook for you to check and send.

Common questions

Why does Claude say it can't create drafts in Outlook?

With Claude's Microsoft 365 connector, the usual causes are: the connector isn't switched on in that chat, the account is a personal Outlook.com one, or a Microsoft admin hasn't set it up and turned drafting on.

Why can't Claude's Microsoft 365 connector attach my PDF?

Its write tools don't support attachments, according to Anthropic's help page. That's a limit of the connector, not a setting you can change.

Is there another way to get Outlook drafts from Claude?

Yes. A custom connector such as Draftbee creates drafts from your own Outlook templates, with attachments and photos, on every Claude plan and on Outlook.com.