Mailchimp, an industry leading email marketing tool, allows you to send, track, and manage email blasts and campaigns to your contacts. Our integration with Mailchimp allows you to set up a two-way sync of your Mailchimp and CRM contacts, and you can automatically log email blasts that you've sent via Mailchimp to the CRM. If you have any questions about this sync, feel free to contact us.
The following is a list of every help article that's related to our Mailchimp integration:
How can I send emails to groups of people?
How can I use Mailchimp to manage and track my email campaigns?
Duplicates groups to create a master list and an email list