- In your mail app, tap the hamburger menu (three horizontal lines) on the left side. Then tap the settings cogwheel at the top here.
- Select the email account you wish to change from the page here. Then, scroll to the bottom and tap Server settings.
- Here is where you can update incoming/outgoing server names, ports, passwords, and authentication settings. Click here to see a picture of what this page should look like.
- Be sure to click Done when finished!