The most effective way to discourage bypass in a marketplace is by providing value in the marketplace-backed transaction. However sometimes, you may prefer to disallow the direct message feature entirely.
How to disable the direct message feature
To prevent users from contacting each others directly:
- log in your admin panel
- go to the Settings tab
- uncheck the "Allow users to message each others freely" box
What changes when users can't contact each others freely?
If that feature is disabled, then:
- the Contact button on user profiles is removed
- the Contact button on listing pages is removed
- users can discuss with each others only by starting a transaction