Hi there,
So we have a campaign running on our website and we were testing in advance that everything is working. While the campaign was live for the first three hours everything was fine, and then I started to notice no new email addresses being added to our campaign list. It seems after these first hours the double opt-in was no longer being sent, and all other email addresses since then have been left as unconfirmed. Can someone help please! How can we fix this?