Every time a new contact is added on Office 365 People, Integromat will automatically validate the email using ZeroBounce. If the email status is "valid", it will create a new contact on LionDesk and add that contact to a campaign. It will also send a Slack message. If the contact already exists in LionDesk, it will send a Slack message. If the email status is "invalid", it will delete that contact from Office 365 contacts and send a Slack message.
This is a predefined template that will make the creation of your scenario much easier. Of course, you can always expand and customize the scenario to meet your own individual needs.