You can choose from hunderts of ready-to-use integrations. You can use them as they are or customize them to suit your needs.
Whenever a new email arrives or is put to a specific folder in your mailbox, Integromat will automatically add the sender of the email to your blacklist in Mandrill.
Every time a new email contact is added to a specified Google Sheets spreadsheet, Integromat will automatically add it to a Mandrill whitelist. This template uses a spreadsheet created according to this example.
Every time a new contact is created in Zoho CRM, Integromat will automatically add that contact to your Mandrill whitelist.