With Gmail, you can find the Exchange Device ID from both a new or an existing Exchange profile
To check the Exchange Device ID from a new account, follow the steps below

- Select Exchange and Office

- Select "Set up manually"
- Scroll to the bottom until you see "Mobile Device ID"

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To check the Exchange Device ID from a new account, follow the steps below

- Select the Exchange email account

- Find the "Server settings" section
- Click "Incoming settings"

- Scroll to the bottom until you see "Mobile Device ID"

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