How to Update Exchange Account Settings on an iOS 11 Device

This procedure is applicable for iOS devices (iPhone, iPad, etc.) running iOS 11 and higher.  The screenshots shown below were taken from an iPhone 7 running iOS 11.0.1.  Other devices will be similar.
  
If you have iOS 11 and experience issues with email connectivity please update to the latest version of iOS. Apple has acknowledged a bug with the Mail app and email connectivity effecting Exchange in the following article: https://support.apple.com/en-us/HT208136
 
Prior to starting this procedure, obtain your account-specific information from the Customer Portal according to the following article:
 
 
To edit Exchange email account server settings on an iPhone or iPad take the following steps:
 
1. From the Home screen tap Settings.
 
 
 
 
2. Scroll down and tap Accounts & Passwords.
 
 
 
 
3. Tap the Exchange or other Email account to update.
 
 
 
 
4. Tap the email address next to Account.
 
 
 
 
5. Update the account settings as needed and tap Done.
 

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