We have an issue with some emails that seems not being able to hook Mailchimp optin process. We also have entries in Gravity form but no member matching in Mailchimp.
Here is an example for the emails that never "arrived":
At the same time I did manage to register 3 other emails perfectly well.
Can you please help?
Our website: http://www.internalartsinternational.com and the form: http://www.internalartsinternational.com/free-newsletter/
Thanks a lot.