[slindsey]

If it's just the text that they're concerned about, then putting that text (email and website text content) into something that can track changes is the right solution. Developers would use git. You could use Google Docs with a separate one for each email template and website content. Maybe MS Word if they use Sharepoint.

The simple answer is probably Google Docs with all the tracking and collaboration turned on so that every change is tracked by who made it and when. But again, that's only relevant for the text and maybe minimal layout.

[aendruk]

This is how I’ve had the most success in the absence of a CMS. Automate dumping of the website text into Google Docs/Sheets and have people edit those.