Right now using an in-house app to make edits to emails initially built in dream weaver.
So, html email template (no unlined css) > merge word content in dreamweaver > upload to custom web app > app uses premailer to in-line the specified css > make changes to the content via ckeditor (which messes up the html in many cases) > export in pardot-ready format.
The app versions the content changes and allows comments as well easy email tests. We do 20+ revisions per campaign so that’s a necessity.
This was built 5 years ago and still works but getting inadequate for the complexity of responsive emails.
I’ve looked at this: https://beefree.io/ but it does not allow the creation of custom content modules. So looking into building a new version of our own, again.
It’s a pain but nothing compared to debugging email markup.