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How to Block a Specific Email Address in Microsoft Forms

Maira Mehtab Sep 24, 2026 869 views

Question details

The user wants to find out if it is possible to prevent one specific email address from submitting responses to a Microsoft Forms questionnaire while still allowing other participants to respond.

Product: Microsoft Forms
Device & OS: not provided
Scenario: Managing respondent permissions for a shared survey to filter out or block submissions from an unwanted user.
Observed behavior: Microsoft Forms lacks a direct blacklist feature for individual email addresses, forcing users to seek alternative ways to restrict access.

Before you start

Ensure you are logged into your Microsoft 365 account and have owner or editor permissions for the form whose access settings you wish to modify.

Solution 1Recommended

Use an Allowlist by Selecting Specific People

Since Microsoft Forms does not offer a blocklist for specific email addresses, the best workaround is to restrict access exclusively to the people you explicitly invite (an allowlist).

By changing the form's permission settings from 'Anyone can respond' to 'Specific people in my organization can respond', you effectively block anyone whose email is not on the list from accessing the form.

Open your Microsoft Form

Navigate to Microsoft Forms and open the specific survey or questionnaire you want to manage.

Access the collect responses menu

Click the 'Collect responses' button located in the top-right corner of the screen.

Change response permissions

In the drop-down menu under 'Send and collect responses', change the setting to 'Specific people in my organization can respond'.

Add allowed email addresses

Manually enter the names or email addresses of the participants you want to allow. The specific email address you wish to block should simply be left off this list.

Limitation Note: This method only works for users within your own Microsoft 365 organization and limits the total number of individual specified users or groups to 100.

Solution 2

Submit a Feature Request via the Microsoft Feedback Portal

Because native email blocking is currently unsupported, submitting a formal feature request helps Microsoft prioritize adding a blocklist feature in future updates.

Free Microsoft Office alternative

Try WPS Office for Your Document and Form Needs

While Microsoft Forms lacks certain granular blocking features, you can explore WPS Office as a comprehensive, free, and lightweight alternative for your daily productivity needs. With powerful document, spreadsheet, and presentation tools, alongside built-in form building capabilities, it offers a seamless transition for Microsoft Office users.

1. Download the installer: Visit the official WPS website and click 'Download' to get the free installation package.
2. Install WPS Office: Run the downloaded file and follow the simple on-screen instructions to install the suite on your device.
3. Create your first form: Open WPS Office, navigate to the 'Apps' or 'New' section, and select 'WPS Form' to start building your customized surveys.

Easily design, share, and manage questionnaires using WPS Forms.Fully compatible with Microsoft Word, Excel, and PowerPoint formats.Lightweight software that runs swiftly on Windows, Mac, Linux, iOS, and Android.Completely free to use with a familiar, intuitive user interface.

Frequently Asked Questions

Will the blocked user receive a notification that they cannot respond?

If you use the 'Specific people' setting, unwanted users will not receive a proactive notification. However, if they attempt to open the form link, they will see a message stating that they do not have permission to view or submit responses.

Can I block an entire email domain from submitting responses in Microsoft Forms?

No, Microsoft Forms does not currently support blocking or blacklisting entire email domains. You can only restrict access to people within your organization or by explicitly inviting specific individuals.

Is there a limit to how many people I can add to the allowlist?

Yes, when choosing 'Specific people in my organization can respond', you are limited to adding up to 100 individual users or groups. For larger lists, it is recommended to create a Microsoft 365 Group.

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