Step 1 – Find the Settings App on your phone
Step 2 – Scroll down to “Mail” and select it
Step 3 – Choose “Work”
Step 4 – Your @katmaicorp.com account should be here. You can now select “Delete Account.”
Step 5 – Select “Delete from My iPhone"
Your email account is now removed from your iPhone’s mail app. You can either download and setup the Outlook App on your phone using this guide (Recommended) or re-add the account to your mail app using this guide.