Mailchimp Webhook


We are using E-mail marketing add-on (cs-cart 4.2.4) with Mailchimp and everything goes well.

I got 2 questions for those of you familiar with Mailchimp:

1. do we need to setup a webhook in mailchimp?

2. if the answer to 1 is "yes", what is the callback URL for the webhook?



So no one is into Mailchimp? :(