Allow multiple guest email addresses on a reservation so automated messages (e.g., check-in instructions) are sent to all guests

As a short-term rental host managing multiple Airbnb and VRBO listings, I frequently have reservations where more than one guest on the same booking needs to receive automated communication—especially check-in instructions.

Currently, iGMS only supports one guest email per reservation. Automated messages (welcome, check-in, pre-arrival, checkout, etc.) are sent only to the primary guest email synced from Airbnb/VRBO/Booking.com. Other guests on the same reservation do not receive these messages automatically.

This creates a gap in guest experience and forces me to manually forward or re-send check-in instructions to additional guests for every booking, which is inefficient and error-prone.

What I need

• On each reservation, be able to add additional guest email addresses (e.g., 1–3 extra emails) alongside the primary guest email.

• When automated messages are sent (via triggers or scheduled templates), iGMS should:

  • Send the message to all guest emails on that reservation, or

  • Provide an option like “Send to all guests on this reservation” when configuring automated messages.

At minimum, this feature should support:

• Multiple guest emails for check-in instructions (the most critical message).

• Optionally extend to all automated guest messages (welcome, pre-arrival, checkout, review requests).

Example use case

• Booking: 3 guests on the same reservation (primary guest + 2 extra guests).

• Primary guest email: primary@example.com

• Extra guest emails: extra1@example.com, extra2@example.com

• When the check-in instructions message is triggered (e.g., “On check-in day”), all three emails receive the same message automatically.

Benefits

• Improves guest experience: all travelers get clear, timely check-in information.

• Reduces host workload: no need to manually forward check-in emails per booking.

• Makes iGMS more competitive with platforms that support multiple guest contacts per reservation.

I’d appreciate this feature being considered for future versions of iGMS.