Open Settings
Launch the Settings app on your iPhone.
Go to Mail Accounts
Scroll down and tap Mail, then Accounts (in iOS 14+) or Mail Accounts.
Select Your Zimbra Account
Tap the Zimbra account you want to remove.
Tap “Delete Account”
Scroll to the bottom and tap Delete Account (or Sign Out). When prompted, confirm by tapping Delete from My iPhone.
Removes all Zimbra mail, folders, calendar entries, contacts, and notes from your iPhone.
Open Settings on your iPhone or iPad.
Scroll down and tap Mail.
Tap Accounts.
Tap Add Account.
Select Google.
Enter your 4J email address and tap Next.
Enter your password and tap Next.
If you have 2-Step Verification, follow the prompts.
You’ll see options to sync Mail, Contacts, Calendars, and Notes.
Make sure Mail is toggled on.
Tap Save.
Now open the Mail app, and your Gmail inbox should be there. Note: It may take up to an hour for your emails to populate in the Mail app.