Add an email account - Apple Support

Set up all your accounts in the Mail app.

Set up iCloud Mail on all your devices - Apple Support

This is is apple real mail? - Apple Community

Use mailboxes to organize email on your iPhone or iPad - Apple Support

Set up Exchange ActiveSync on your iPhone or iPad - Apple Support (CA)

Set up and use Apple Card on iPhone (U.S. only) - Apple Support

Manage and delete contacts on your iPhone or iPad - Apple Support

Configure Apple Mail Client with IMAP or POP - Email Hosting Support by Webhero

Set up email on Apple iPhone, iPad, and iPod Touch with Office 365 operated by 21Vianet - Microsoft Support

Use mailboxes to organize email on your iPhone or iPad - Apple Support

i recieve an email from secure@support - Apple Community