I set up a smart list for each email send for invalid emails (hard bounce category 2) and have come across this scenario:
We have an imported list (and suppress marketing suspended records) that we email an event invite to and get back X amount of invalid emails. I have triple checked that those emails are then marked as "marketing suspended" through an active trigger campaign. About a week later we'll send a second invite to the same people, minus anyone that's already registered, but then we'll see that we get even more email invalids from that second send. Shouldn't any invalids already be marked as marketing suspended and not have been included on that second send?
Any insights would be appreciated. Thanks!