Does Claude block disposable email addresses at signup?

Some well-known disposable domains are filtered, but inbox Me's rotating domains generally get through. If your address is rejected, generate a fresh one and try again, or use Google sign-in instead.

Can I keep using a Claude account made with a temp email long-term?

You can, but once the temp inbox expires you lose the ability to reset your password or receive account notices. Use a real or stable alias address for any Claude account you plan to keep.

What if the Claude verification code never arrives in my temp inbox?

Wait about a minute — delivery is usually fast. If nothing shows up, request a new code from the Claude signup page; if that still fails, generate a new inbox Me address, since a specific domain may be temporarily filtered.

Temp Mail for Claude: Does Anthropic Accept Disposable

Temp Mail for Claude: Does Anthropic Accept Disposable Emails?

Whether Anthropic's Claude accepts a temporary email address at signup, how the verification code flow works, and where it can break down.

Anthropic's Claude generally accepts disposable email addresses for account creation. Instead of a confirmation link, Claude emails a one-time verification code you type directly into the signup page — a flow that works cleanly with inbox Me since the code appears instantly in your inbox. Claude also supports Google sign-in, which skips email verification entirely if you'd rather avoid it. Note that a Claude account tied to a disposable inbox has no path to recovery once that inbox expires.

How to sign up for Claude with a temporary email

Step-by-step flow for signing up to Claude using a temporary email address

Open inbox Me — your disposable address is generated automatically, no signup required.
Copy the address from the top of the inbox Me page.
Go to claude.ai, click Sign up, and enter your temp address.
Anthropic sends a numeric verification code by email. Switch back to inbox Me — it typically arrives within seconds.
Type the code into the Claude signup page to confirm your address.
Complete the remaining onboarding steps (name, usage terms) to start chatting.

Common verification blockers

Claude email verification code entry with a temporary inbox open alongside

A handful of well-known disposable domains are filtered by Anthropic's signup form — if your address is rejected outright, generate a new inbox Me address, since each one uses a different domain. Claude's free-tier usage limits are tracked per account, and Anthropic does watch for rapid account creation from the same IP as a fraud signal, so avoid cycling through many signups in quick succession.

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Frequently asked questions

Does Claude block disposable email addresses at signup?: Some well-known disposable domains are filtered, but inbox Me's rotating domains generally get through. If your address is rejected, generate a fresh one and try again, or use Google sign-in instead.
Can I keep using a Claude account made with a temp email long-term?: You can, but once the temp inbox expires you lose the ability to reset your password or receive account notices. Use a real or stable alias address for any Claude account you plan to keep.
What if the Claude verification code never arrives in my temp inbox?: Wait about a minute — delivery is usually fast. If nothing shows up, request a new code from the Claude signup page; if that still fails, generate a new inbox Me address, since a specific domain may be temporarily filtered.