Adding an email account to your iPhone is a straightforward process. Here's a step-by-step guide to help you do it:

1. Open Settings: Unlock your iPhone and locate the "Settings" app on your home screen. It looks like a gear icon.

2. Scroll Down and Tap on "Mail": In the Settings menu, scroll down until you find the section labelled "Mail." Tap on it to proceed.

3. Select "Accounts": Under the "Mail" settings, you'll see an option labelled "Accounts." Tap on it to manage your email accounts.

4. Tap on "Add Account": At the bottom of the "Accounts" section, you'll find the "Add Account" option. Tap on it to begin adding a new email account.

5. Choose Your Email Provider: You'll be presented with a list of popular email providers like Google, Yahoo, Outlook, etc. Select your email provider from the list. If your provider is not listed, choose "Other" and proceed to enter your email account details manually.

6. Enter Your Email Address and Password: Once you've selected your email provider, you'll be prompted to enter your email address and password associated with that account. Provide the required information and tap "Next" or "Sign In."

7. Follow the On-Screen Instructions: Depending on your email provider, you may need to follow additional on-screen instructions to complete the setup process. This may include granting permissions or allowing access to certain features.

8. Wait for Verification: Your iPhone will attempt to verify the account settings and establish a connection with the email server. This process may take a few moments.

9. Customize Account Settings (Optional): After the account is successfully added, you can customize various settings such as mail fetching frequency, notifications, and signature from the "Mail" settings.

10. Access Your Email: Once the setup is complete, you can access your email account by opening the "Mail" app on your iPhone. Your newly added email account should appear in the inbox along with any existing accounts you have. 

That's it! You've successfully added your email account to your iPhone. You can now send, receive, and manage your emails directly from your device.

If you encounter any issues during the setup process, double-check your email address and password for accuracy, and ensure that you have a stable internet connection. If problems persist, you may need to contact your email provider for further assistance.

Now you're ready to stay connected on the go with your iPhone's Mail app!