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Steps to set up your corporate email account on Android phones and tablets. The look of the screens varies by manufacturer and version; the field names are the same.
All the values you will use during setup are below. Replace yourdomain.com with your own domain name; the username is always your full email address, not just the "name" part.
The step-by-step email setup wizard asks for your email app and address, then guides you through every screen with settings tailored to your address. We never ask for your password.
Because automatic setup guesses the wrong server for corporate addresses, we proceed with manual setup.

Go to the add account screen in the email app. After typing your address and password, press the Manual Setup button instead of Next.

In the list that appears, choose IMAP account. If you only want to keep mail on a single device, you can choose POP3; if you also want to synchronize calendars and contacts, you can choose Microsoft Exchange ActiveSync.

Type your full email address in the username field. When you set the security type to SSL/TLS, the port usually changes by itself; if it does not, correct it manually.

The Require sign-in box must be ticked; if it is not, you cannot send mail. When done, continue with Next.
On the last screen you choose the sync frequency and give the account a name. After you press Finish, your inbox starts to fill. Send yourself a test email and check it.
The server details are the same in all of them; only the look of the screens changes.
Outlook 365 and the new Outlook app
Classic Outlook versions (2013-2021)
iOS and iPadOS Mail app
The Mail app on Mac
Windows, Mac and Linux