Sign in and out
Go to https://mail.phonemail.net. Signing in happens on one screen: your phone number, the OTP (one-time code) and one Next button. Just above the button, "By signing up, you agree to the Terms of Service" links to the terms.
With a one-time code (OTP)
- Type your 10-digit mobile number. The screen shows the address it belongs to, for example Your address: 9876543210@phonemail.net.
- Press Next. A 6-digit code is sent to you by text, and the screen says We texted a code to +91 ….
- Type the code in the OTP field and press Next again.

If the number has no account yet, these same steps create it.
You can ask for a new code after 30 seconds, and up to 5 times an hour.
With a password
Once you have set a password (in Profile and settings), you can sign in without waiting for a text:
- Press Use a password instead under the Next button.
- Type your number and your password, and press Next.

Use an SMS code instead switches back.
Forgot your password?
- Press Use a password instead, then Forgot password? under the password field.
- Type your number and press Send code.
- Type the code you get by text, your new password twice (8 or more characters), and press Set new password.

You are signed in straight away. Anyone signed in elsewhere with the old password is signed out.
Without the internet
The bottom of the sign-in screen reminds you that you can get an address without the app or internet: call +1 507 800 0027 and press 1, or text JOIN to it. See Create an account.
Sign out
Click your picture in the top-right corner, then Sign out. On a shared computer, always sign out when you finish.

To sign out on every computer and phone at once, use Settings → Devices → Sign out everywhere.