We have a mailing list (List A) and over the years people have unsubscribed/bounced and been added to the suppression list.
We are about to add a new page to the website that will collect data for a new list (List B) for two new products.
Can I check what will happen if someone tries to subscribe to the new list (List B) but is already on the suppression list.
Thanks for your help.
If someone subscribes via a subscribe form tied to your list they'll be added to your active list, even if they were previously unsubscribed/suppressed. The suppression list only prevents you from manually importing them yourself.