Use the Email booking question’s validation rules in Cal ID to allow or block specific email domains so only approved bookers can complete a booking.
Control exactly who can book with you by using the validation rules built into the Email booking question in Cal ID. Automatically filter out personal accounts or limit bookings to specific professional organizations, so your calendar stays reserved for the right audience.
Allow vs. block.Require rules act as an allowlist — only the domains you list can book. Exclude rules act as a blocklist — the domains you list are turned away, and everyone else is allowed.
If a booker attempts to book with a restricted email address, the system blocks the submission and displays a specific error message when they click Confirm:
When excluded: If you’ve blocked a domain (like a personal Gmail account), the booker sees:
“Please enter a valid work email address”
Blocking a personal email address
When required: If you’ve limited the event to specific domains and the booker uses a different one, they see:
“You are not allowed to book with this email domain. Please contact the owner of this link.”
Turning away an unapproved domain
Professional prospecting: For Sales Discovery calls, it’s common practice to exclude gmail.com, outlook.com, and yahoo.com. This ensures you collect professional contact information, making it easier to research your prospects and maintain a high-quality lead list.
