I created a Gravity form for signups to a newsletter I will be producing shortly. I tested the form and it worked great, passing my own registration to MailChimp and sending me an opt-in email. I see I've since received 16 more sign-ups, none of which appear in MailChimp. So, I did another sign-up of my own using a different email account to discover that something in the chain is broken. I just don't know what it is.
The MailChimp list, form, map fields, and double opt-in conditions are set.
Can anyone help?