A continuation of the query that @Eileenmcnaughton ran for our contacts from 'Reply Mail Block' events, we would like to get a comprehensive list of these contacts in addition to the Comcast contacts we had exported.
In theory, we would like to "un-hold" these contacts, but the timing of "unhold"ing the records in Civi is important, since Civi will only re-import those purged contacts for 7 days after the unhold.