DocumentationMarketo EngageMarketo Guide

Security Settings security-settings

Last update: September 2, 2026

In Security settings, you have the ability to add domains to a blocked or allowed list.

IMPORTANT
Block and Allow Email Domain filtering applies only when a visitor enters their email address directly within Dynamic Chat, either in the chatbot or in a conversational flow. It does not apply to email addresses that Dynamic Chat receives from integrated products, such as Marketo Engage. For more information see the table below.
Scenario
Does filtering apply?
Visitor types their email directly into the Dynamic Chat chatbot
Yes
Visitor types their email directly into a Dynamic Chat conversational flow
Yes
Email is pre-populated from a Marketo form submission (conversational flow appears after form fill)
No
Email is passed to Dynamic Chat from any other integrated system
No

Blocked Email Domains blocked-email-domains

If there are any visitors with email domains you don’t want your agents to interact with (e.g., a competitor), add their email domain to the blocklist.

  1. Select the Enable Validation slider to activate your blocklist. Enter up to 50 domains and click Save.

Allowed Domains allowed-domains

Adding allowed domains ensures that third parties can’t scrape the javascript from your site and add it to their own.

  1. Select the Enable Validation slider to activate your allowlist. Enter the allowed domains and click Save.

recommendation-more-help
marketo-help-marketo