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Docs Multiple Accounts

Multiple Claude accounts with Outlook, Hotmail & Live

Microsoft lets one account own up to 10 real aliases — each a genuine, distinct address (e.g. This email address is being protected from spambots. You need JavaScript enabled to view it.) that all share your one inbox. These are the gold standard for free aliases: distinct enough that sign-ups treat them as separate people.

This guide is part of Set up multiple Claude accounts — the full walkthrough for getting several Claude accounts so Power Claude can rotate between them.

Reliability: Reliable — real distinct addresses

Microsoft lets one account own up to 10 real aliases — each a genuine, distinct address (e.g. This email address is being protected from spambots. You need JavaScript enabled to view it.) that all share your one inbox. These are the gold standard for free aliases: distinct enough that sign-ups treat them as separate people.

Works for rotation? Excellent. Each alias is a fully separate-looking address, so each can be its own Claude account.

Step by step

  1. Sign in to your Microsoft account at account.microsoft.com.
  2. Go to Your info, then click Account info (or open the Email & accounts settings at account.live.com/names/Manage).
  3. Choose Add email (an alias). Pick "Create a new email address and add it as an alias."
  4. Type the new address you want — for example This email address is being protected from spambots. You need JavaScript enabled to view it. — and click Add alias.
  5. Repeat for as many as you need (up to 10 total addresses per account).
  6. Now go to Claude, sign up with the new alias, and verify it from your normal inbox (every alias delivers there).
  7. In Power Claude, add the new account to the rotation. Done — that account now shares the pool.

Good to know

  • Microsoft caps you at 10 aliases per account and lets you add/remove a limited number per year — plan which addresses you want.
  • Make the address itself distinct (not just a + tag) so every system sees it as separate.

Pro tip: Name your aliases predictably — yourname.c1, yourname.c2, yourname.c3 — so you instantly know which Claude account is which in the Power Claude dashboard.