Verify tracking domain


I would like to know if it's possible to have as a requirement that our users have to send with verified tracking domain. So the requirement should be to verify and choose the tracking domain in the campaign settings.

Similar settings can be used for sending domains - we can choose that our users in the specific groups must have verified their sending domain and use it in campaigns.

Thanks :)
That's currently not possible, sorry.
Can I also ask if its possible to have something like "default tracking domain"? So if customer don't select tracking domain, it won't be automatically our app's domain but some default domain that we could change for customers? We'd need to figure this out. Sometimes it happens to us that due to campaigns of customers who don't use the tracking domain our domain gets blacklisted.

Or If you have any other ideas? Thanks! :)