Connect Cal.com to MailNesto
Bookings, reschedules and cancellations keep your meeting tasks up to date.
Cal.com and MailNesto, together
Cal.com bookings can flow straight into MailNesto’s sales tools. Each booking becomes a meeting task at the booked time, linked to the person who booked, and the person is tagged so automations can follow up.
Because Cal.com sends separate events for created, rescheduled and cancelled bookings, the task always matches the calendar: moved when the time changes, closed and marked “Cancelled:” when the booking is called off. Cal.com signs each delivery when you set a secret, and MailNesto checks it.
What moves between Cal.com and MailNesto
A meeting task titled with the booking title and the attendee’s name, at the start time, with the location in the notes.
The existing task moves to the new time and reopens if it had been closed.
The task is closed and its title starts with “Cancelled:”.
Name, email, last_meeting and last_meeting_at fields, the booked-meeting tag and any tags you add.
Connect Cal.com in a few minutes
- 1
Connect in MailNesto
Go to Integrations → Connect an app → Cal.com. Choose who meeting tasks are for, add tags, and say whether your booking page asks for marketing consent. Type a secret and click Connect.
- 2
Add the webhook in Cal.com
In Cal.com open Settings → Developer → Webhooks → New. Paste the URL from MailNesto, pick Booking created, Booking rescheduled and Booking cancelled, and set the same secret.
- 3
Book, move and cancel a test slot
Try all three. Each shows in the Activity tab, and the task under Sales → Tasks follows along.
What you can do with it
A SaaS team in Gurugram can tag demo bookers and send a two-minute video the day before, so the live demo can skip the basics.
Add a “Create deal” step to the automation that starts on booked-meeting, so every demo booked becomes a deal in your first stage.
The last_meeting field holds the booking title, so a physiotherapy clinic can build a segment of everyone whose last meeting was a “Free assessment” and send them a package offer for follow-up sessions.
Questions about the Cal.com integration
Does it work with team and round-robin events?
Yes. Each booking event carries the attendee and time, which is what MailNesto needs to create the task and update the contact.
Are bookers subscribed to my emails?
Only when you switch on “My booking page asks for marketing consent”. Otherwise existing contacts are tagged and updated, and new bookers aren’t added to your marketing list.
Is the secret required?
No, but with a secret set, any delivery without a matching signature is rejected and logged.
Where do I see the meetings?
Under Sales → Tasks, including the Today list, with the person linked so you can open their email history before the call.
Can I turn off the tasks and keep the tagging?
Yes. Switch off “Create a meeting task for each booking” and the connection only updates and tags contacts, which suits teams that track meetings elsewhere.