Block form or pop-up form submissions from specific email domains

You can prevent visitors with email addresses at certain domains from submitting your HubSpot form or pop-up form.

Block email domains on a form

• In your HubSpot account, navigate to Marketing > Lead Capture > Forms.
• Hover over the form name and click Actions > Edit form.
• In the form editor, hover over the Email field and click edit Edit.
• Enter the domains you want to block in the Email domains to block field, separated by commas. Enter only the root domain without the www prefix or @ symbol (e.g., enter gmail.com , not www.gmail.com or @gmail.com).
• (Optional) Select the Block free email providers checkbox to block HubSpot's default list of free domains.

• In the top right, click Publish to take your changes live.

When a visitor attempts to enter a blocked domain in the Email field on your form, they will see a message asking them to enter a business email address.

Block email domains on a pop-up form

• In your HubSpot account, navigate to Marketing > Lead Capture > Forms.
• Hover over the pop-up form name and click Actions > Edit form.
• Click the Form tab.
• In the left pane, click the pencil icon edit on the right of the Email field.

• Enter the domains you want to block in the Email domains to block field, separated by commas. Enter only the root domain without the www prefix or @ symbol (e.g., enter gmail.com , not www.gmail.com or @gmail.com).
• (Optional) Select the Block free email providers checkbox to block HubSpot's default list of free domains.

When a visitor attempts to enter a blocked domain in the Email field on your pop-up form, they will see a message asking them to enter a business email address.