We've been connected with Mailchimp (using Pimpchimp) for a while now. It is indeed possible to see if a newsletter is opened or clicked in a person contact but there is something missing : 

We would like to create a filter with the option "clicked more than 3 times in a newsletter in the last 3 months" for example.  It would be  a great idea for me because I could send them a free trial or tell my sales team to call them back. 

I don't want to open one by one 500 people who clicked (from now), this may take a while and I don't have that time.

Could you please look at that at Pipedrive?

Thanks a lot