I accidentally deleted my mail app on my iPhone 7. How do I get it back?!!

Open the App Store on your iPhone. Scroll down to "Apps Made by Apple". Find and re-download the app from there.

@Pbeatty71 & @Lonelyrunner: I had the same thing happen... turns out once you reinstall the mail app, you then have to go to SETTINGS, then scroll down to ACCOUNTS & PASSWORDS (should be the one just above the MAIL icon) and there you'll find all the email accounts you originally had on your phone. Click on the email address and toggle the button back to "ON"(green) again...it will automatically reload your emails.

So I downloaded the app but it just says that that Apple ID has already been added to my iPhone, i can’t get passed that scre

Same thing. Help! Just want back like before. What happened? Deleted, re installed, can’t get past email providers screen says all of mine loaded but can’t get off the page