Add an email account - Apple Support

Set up all your accounts in the Mail app.

Add email attachments in Mail on iPhone - Apple Support

Use a different Apple ID to share purchases with Family Sharing - Apple Support

How to add YubiKeys to Apple ID: A step-by-step guide - Yubico

Check your email in Mail on iPhone - Apple Support

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

Add an email account - Apple Support

an email for apple support - Apple Community

How to create a new Apple ID - Apple Support

Set up iCloud Mail on all your devices - Apple Support

Apple iOS Email Setup