Our Newsletter emailing list has a lot of contacts with “blank” email status. We have paid to have the list cleaned before but this message seems to pop up once every few months or so saying that we have too many contacts with a blank email status. We have primarily been getting people to sign up using the website form and have not been importing or manually entering a large number of contacts so I’m not sure why we keep getting this message, is there a way to fix this issue without having to clean the list every few months?
Additionally, I want to get as many of these contacts as possible to double opt in. It seems there’s supposed to be a system email that would go out after they sign up by the website that asks them to confirm their email address but I’m not sure how to set that up, and I’m not sure how to get contacts who have signed up for the mailing list a while ago to double opt in. Any help would be appreciated!