## Email types

- **Confirmation** sent to the guest immediately after a successful booking, and to the host as a "new booking" notification. Includes the meeting details, the location link (Google Meet, Teams, Zoom, address, or phone), and a calendar invite attached as `.ics`.
- **Reschedule** sent when the guest reschedules via the link in their confirmation email. The original event is updated, not duplicated.
- **Cancellation** sent when the guest or host cancels. Both sides are notified, and the calendar event is removed.
- **Reminder** a separate email a configurable number of hours before the meeting starts. Set the reminder window in the page editor.

## ICS attachments

Every confirmation email arrives with a `.ics` file attached. Guests who use Apple Mail, Outlook, or other clients can double-click it to add the meeting to their calendar, even if they did not click any link.

## Customizing emails

Per booking page you can customize:

- Confirmation email subject line.
- An additional message inserted into the body (a Loom link, prep instructions, a Zoom backup link).
- Reminder timing (none, 1 hour, 24 hours, multiple).

Brand colors and logos in emails follow your booking page settings.

On the Executive plan, and on every AppSumo lifetime tier, you can rewrite the subject and body of every email sent to guests. See [Email customization](/content/docs/email-customization/index.html).

## SMS notifications

On the Executive plan, and on every AppSumo lifetime tier, TimeTuna also sends booking texts: confirmations, 24-hour reminders, cancellations, and reschedules. Guests get them when they provide a phone number on the booking form; you get them on your own phone after verifying your number under **Settings → Profile** and enabling the SMS toggle.

Booking texts send exclusively through your own Twilio account: connect it under **Connected accounts** and messages go out from your own number, billed by Twilio directly, with no TimeTuna message limit. Without a connected Twilio account, no booking SMS is sent. See [Connect your own Twilio](/content/docs/integrations/twilio/index.html).

## SMS verification

Optional phone field on the booking form can be set to **Required, verified**. Guests receive a 6-digit SMS code and must enter it before they can complete the booking. Useful to prevent fake bookings or no-shows.

## Deliverability

TimeTuna sends emails through Loops.so on a warmed-up domain. If a guest reports that they did not get the email, check spam first, then verify the address on their booking record was typed correctly. See [Email not received](/content/docs/common-troubleshooting/email-not-received/index.html).

Host notifications go to your account email

Host confirmation emails are sent to the email address on your TimeTuna account, not to the calendar your bookings are written to. Update it under **Settings → Profile** if you need to.