How do I setup the option to approve subscription requests?
Sometimes people may want to subscribe to your list by applying filling out a web page signup form that you may have placed on your website or when somebody sends an email to email@example.com (where listname would be replaced with the name of your list).
By turning on the "Approve Each Subscriber", every subscription request is forwarded to you (the list moderator/owner) and only after your approval, the subscriber is added to your list.
Log into your Mail-List.com account from https://database.mail-list.com and click on "Customize Your List".
Select the radio button preceding "Approve Each Subscriber".
Save your changes.
You can get details about the complete process here: