Disabling Header and Footer in Notification Message in SharePoint Online
We are trying to figure out how to remove headers from emails from the workflow in SharePoint online. I see you have a KB article:
https://support.nintex.com/SharePoint/Workflow/Disabling_Header_and_Footer_in_Notification_Message
But that appears to only be for SharePoint on-prem. How do we disable them in SharePoint online?
I opened case number 00246103 and they suggested I post here. They are still researching. I would call this a feature request.

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Tanbir commented
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Mark Collins commented
We figured it out. It’s a fairly subtle option in the workflow action configuration, called “Delivery method” with a couple of the options being “Email with Actionable Message” vs “Email Only”, the former of which is what has been putting that “header” on there.