How to change mail authentication iphone 5

To change the mail authentication settings on an iPhone 5, follow these steps:

Method 1: Change Mail Authentication Settings through the Mail App

1. Open the Mail app on your iPhone 5.
2. Tap on the "Mail" button in the top left corner to go back to the inbox.
3. Tap on the "Settings" icon (looks like a gear) in the top right corner.
4. Scroll down and tap on "Accounts".
5. Select the email account you want to change the authentication settings for.
6. Tap on "Account" or "Edit" next to the account name.
7. Scroll down to the "Outgoing Mail Server" section.
8. Tap on "SMTP" and then tap on "Authentication".
9. Select the authentication method you want to use (e.g. "Password", "OAuth2", etc.).
10. Enter your username and password (if required).
11. Tap "Save" to save the changes.

Method 2: Change Mail Authentication Settings through the Settings App

1. Open the Settings app on your iPhone 5.
2. Scroll down and tap on "Mail, Contacts, Calendars".
3. Tap on the email account you want to change the authentication settings for.
4. Tap on "Account" or "Edit" next to the account name.
5. Scroll down to the "Outgoing Mail Server" section.
6. Tap on "SMTP" and then tap on "Authentication".
7. Select the authentication method you want to use (e.g. "Password", "OAuth2", etc.).
8. Enter your username and password (if required).
9. Tap "Save" to save the changes.

Common Authentication Methods

• Password: Enter your email account password to authenticate.
• OAuth2: Use OAuth2 authentication to access your email account.
• None: Disable authentication for the email account.

Troubleshooting Tips

• If you're having trouble sending emails, try restarting your iPhone or checking your email account settings.
• If you're using a third-party email client, check the client's settings for authentication options.
• If you're still having trouble, contact your email provider's support team for assistance.