Missed call emails are managed by Exchange and to that extent the option is found with in Office 365.
How to enable/disable missed call notifications
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Using portal.office365.com, Log in to Office 365
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From the App Launcher, Select Mail
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Click on the Gear wheel Icon to access options.
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Search "Notifications" in the search field.
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Select Notifications - Voice mail
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Toggle the check mark in the field "Send an email message to my Inbox when I miss a phone call"