Authenticator App - Novaz

Fastmail 2FA: How to Set Up an Authenticator App

fastmail.com Supported

Protect your Fastmail account with two-factor authentication (2FA). Once enabled, signing in also requires a one-time code from your authenticator app — not just your password.

Your Fastmail inbox is the master key to your other accounts — attackers use it to reset passwords everywhere. Besides an authenticator app, Fastmail also offers SMS text codes, a hardware token and security keys. An authenticator app (TOTP) is usually the best balance of security and convenience — and it's safer than SMS codes, which can be intercepted through SIM-swap attacks. For the strongest protection, Fastmail also supports hardware security keys.

2FA methods Fastmail supports

  • SMS text message
  • Authenticator app (TOTP)
  • Hardware token
  • Security key (U2F / WebAuthn)
  1. 1

    Download Authenticator App - Novaz

    Install Authenticator App - Novaz from the App Store on your iPhone or iPad and open it — you'll use it to scan Fastmail's QR code and generate your 6-digit sign-in codes.

    Download on the App Store
  2. 2

    Sign in to Fastmail and open your Fastmail account security settings.

  3. 3

    Turn on two-factor authentication and choose the authenticator-app option.

    Look for "Authenticator app", "Authentication app", or "TOTP" rather than SMS.

  4. 4

    Scan the QR code with Authenticator App - Novaz.

    Open Authenticator App - Novaz, tap add, and point your camera at the QR code Fastmail displays. Can't scan? Enter the setup key manually instead.

  5. 5

    Enter the 6-digit code to confirm.

    Type the code Authenticator App - Novaz generates to verify and link your Fastmail account.

  6. 6

    Save a way to recover your account.

    If Fastmail shows backup or recovery codes, store them somewhere safe, away from your phone. If it doesn't, check how Fastmail recovers accounts (support, an admin, or another sign-in method) before you need it.

Menu names on Fastmail can change — the official Fastmail 2FA documentation ↗ always has the exact, current path.

How to recover your Fastmail account

If you lose access to your authenticator and Fastmail gave you backup or recovery codes when you turned on 2FA, sign in with one of them; keep them somewhere safe, away from your phone. Not every service issues codes. If Fastmail doesn't, or you didn't save them, use Fastmail's account-recovery or support process (or ask your admin, for a work account) to get back in.

Frequently asked questions

Does Fastmail work with authenticator apps like Authenticator App - Novaz?
Yes. Fastmail supports TOTP authenticator apps, so you can generate its two-factor codes in Authenticator App - Novaz.
Is Fastmail two-factor authentication free?
Yes. Enabling authenticator-app 2FA on Fastmail is free — you only need the free Authenticator App - Novaz.
What if I lose access to my Fastmail 2FA codes?
If Fastmail gave you backup or recovery codes during setup, sign in with one of them. If it didn't, or you didn't save them, use Fastmail's account recovery or contact its support (or your admin, for a work account), then add the account to Authenticator App - Novaz again.
Should I use an authenticator app or a security key on Fastmail?
Fastmail supports both. An authenticator app like Authenticator App - Novaz is free and works on any phone; a hardware security key adds phishing resistance. You can enable both.

Generate your Fastmail codes in Authenticator App - Novaz

Free, offline, and encrypted. One tap for every 6-digit code.

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