How careful your inbox is. Strict lets mail from someone new wait in your Intray, so you can look before it reaches your inbox. Maximum only lets through people you have trusted — everything else is thrown away.
People whose mail always goes straight to your inbox. Add someone here and you will never miss their email.
People you never want to hear from. Their mail is thrown away before it reaches you — you will not see it at all.
Words you never want to see. Emails containing one are thrown away. Useful for scams that keep changing address but always say the same thing.
Blocks emails with this word in the subject line or the sender's address.
Most scam email comes from abroad. Turn this on and mail sent from outside the United States is thrown away.
Newsletters and marketing emails are removed automatically unless the sender is in your trusted senders or Updates list. Turn this off and they will wait in your Intray instead, where you can trust, block, or move them to Updates.
Whether replies are stacked together. On: a back-and-forth shows as one item you can open. Off: every email is listed on its own.
Have a Gmail or other email address? Set it to forward here, and its mail arrives in this app, sorted into its own folder — with anyone you've blocked, and any blocked words, still filtered out.
The few lines added to the bottom of every email you send — usually your name, business and phone number.
Away for a while? Anyone who emails you gets an automatic note back saying when you will return.
People you have emailed before. Saved so you can pick a name instead of typing the whole address.
Which folders make your phone buzz when new mail arrives. Many people turn on the inbox only, so the quieter folders stay quiet.
An extra step when you sign in. After your password, you enter a short code from your phone — so someone who steals your password still cannot get in.
Download a copy of everything held about your account. Yours to keep, whenever you want it.
Pick a new password for signing in. A good one is long and not used anywhere else.
A second address, used only if you are locked out. We send a reset link there, so it should be an account you can still get into.