Our database has a lot of fake emails in there which we would prefer not to send to. I've begun to enter these, as well as other preventative addresses, into a data extension which I want to use to use to exclude these contacts in journey builder sends.
As a lot of this is preventative the data extension just contains email addresses.
I already have a Domain Exclusion extension up and running but this only works to filter out addresses on a domain level. I want to exclude the likes of firstname.lastname@example.org and email@example.com etc.
What is the best way of doing this?