Require/Exclude Email Domains (Booking Question)

Use the Email booking question to allow or block specific email domains or individual addresses for a Link.

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Set up email restrictions

1. Go to Links and open the Link you want to update.
2. Select Booking form. Under Booking questions, find Email address (the Email field) and click Edit.

3. Fill in either or both fields:
   • Require emails that contain: only allow addresses matching an entry.
   • Exclude emails that contain: block addresses matching an entry.
4. Separate multiple entries with commas, such as gmail.com, yahoo.com. Leave a field blank if you do not need that restriction.
5. Click Save in the dialog, then Save on the Link.

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How matching works

Entries match whole domains or whole addresses, not any text the email contains:

• acme.com and @acme.com both match the exact email domain. They do not match sub.acme.com or notacme.com.
• A full address, such as contractor@acme.com, matches only that address.
• Matching is case-insensitive, and spaces around comma-separated entries are ignored.
• When both fields are filled, an address must match a required entry and must not match any excluded entry.

For example, require acme.com and exclude contractor@acme.com to allow jane@acme.com, but block both contractor@acme.com and jane@gmail.com. These rules apply to the question you edit, not to Add guests or other email questions. You can configure restrictions separately on other Email-type questions. This checks the address entered, not whether someone is a verified member of an organization.

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What bookers see

Bookers cannot continue with a blocked address. An error appears below the email field:

• If the address does not match a required entry: “You are not allowed to book with this email domain. Please contact the owner of this link.”
• If the address matches an excluded entry: “Please enter a valid work email address”.