I've tried multiple APIs with my WordPress site and none of them will generate a notification email that a new subscriber has joined my list. This seems very basic and very necessary. i'm not sure why CC doesn't allow it...
Any help would be great. To be clear, I'm not looking for a welcome email. I want to be notified when I get a new subscriber.
Constant Contact does have a feature built in to our software to allow you to receive a configurable notification when new subscribers join your list through a Constant Contact signup from, or a properly configured integrated signup form. You can read about this option and see how to enable it here: https://knowledgebase.constantcontact.com/articles/KnowledgeBase/5530-automatic-email-updates-for-si...
I do want to make one important note that integrated third-party forms must be configured properly by the form creator. Since a properly configured form will always cause a welcome email to be sent to new subscribers, you can test this by adding one of your own email addresses through your form and checking to see if you receive a welcome email.
If I can provide any more information or if you have any questions, please let me know!