We wrote a script that does that by full (ex @gmail.com) so it can be done. You could use decision diamonds and “contains” “.gov” and the like if you know the ones you’re looking for
Is it possible to make the action tag the contact so that another campaign (outside of the current one that tags them) is sent to that contact?
For example, in the main opt-in nurture campaign, if the tag “Government” is applied, they’ll be sent a “Government” campaign separate from the main opt-in nurture campaign.