Fix Teams Webinar Registration Does Not Send Confirmation After a Meeting Policy Change

You changed a Teams meeting policy in the admin center, and now webinar registrants stop receiving confirmation emails. This problem usually appears after an admin adjusts the Webinar policy or the Meeting policy that controls registration settings. The cause is often a mismatch between the policy assigned to the organizer and the policy settings for registration notifications. This article explains the root cause, walks you through the fix in the Teams admin center, and covers related failure patterns such as missing reminder emails and broken registration links.

Why a Meeting Policy Change Breaks Webinar Confirmation Emails

Teams uses two policy types to manage webinars: Meeting policies and Webinar policies. The Meeting policy includes a setting called Webinar registration. This setting can be set to Enabled or Disabled. When you change this setting for a user or for a policy that the user inherits, Teams recalculates how the webinar behaves. If you set the policy to Disabled or to a mode that does not support automatic emails, the confirmation email stops going out.

The Webinar policy also has a setting called Registration approval mode. This mode can be Auto-approve or Manual approval. In Auto-approve mode, Teams sends a confirmation email immediately after the registrant signs up. In Manual approval mode, the organizer must approve each registrant before the email is sent. A policy change that switches from auto-approve to manual approval will appear as missing confirmation emails, because the email only goes out after manual approval.

Another factor is the Registration link setting in the Meeting policy. This setting controls whether the registration link appears on the webinar invite. If you accidentally disabled the registration link, users cannot sign up at all, which also means no confirmation email.

Steps to Diagnose and Fix Webinar Confirmation Emails After a Policy Change

Follow these steps in order. Each step checks a different part of the policy chain.

Step 1: Verify the Organizer’s Effective Meeting Policy

1. Open the Teams admin center
   Go to Teams admin center and sign in with an account that has the Teams Administrator role.
2. Go to Users > Manage users
   In the left navigation, select Users, then Manage users. Find the webinar organizer and click their name.
3. Open the Policies tab
   In the user’s profile, select the Policies tab. Look for the Meeting policy entry. Note the policy name that is assigned.
4. Check the Webinar policy assignment
   On the same tab, find the Webinar policy entry. Write down both policy names.

Step 2: Check the Meeting Policy Settings

1. Open the Meeting policies page
   In the Teams admin center, go to Meetings > Meeting policies.
2. Select the assigned policy
   Click the policy name you found in Step 1. This opens the policy settings.
3. Find the Webinar registration setting
   Scroll to the Webinar section. Look for Webinar registration. Set it to Enabled.
4. Check the Registration link setting
   In the same section, verify that Registration link is set to Enabled. If it is disabled, change it to Enabled.

Step 3: Check the Webinar Policy Settings

1. Open the Webinar policies page
   In the Teams admin center, go to Meetings > Webinar policies.
2. Select the assigned policy
   Click the policy name you found in Step 1.
3. Set the Registration approval mode
   Look for Registration approval mode. Choose Auto-approve to send confirmation emails immediately. If you must use Manual approval, you need to approve each registrant manually.
4. Save the changes
   Click Save at the bottom of the page. Wait up to 15 minutes for the policy to propagate.

Step 4: Test with a New Registration

1. Create a test webinar
   In Teams, create a new webinar and use a test account to register.
2. Check the email inbox
   Open the test account’s inbox. Look for the confirmation email. If it arrives, the fix worked.
3. Check the registration report
   In Teams, open the webinar and go to Registrations. Confirm the registrant appears with a Registered status.

If Teams Still Has Issues After the Main Fix

Teams Shows a Blank Registration Page After Policy Change

If the registration page is blank, the Registration link setting in the Meeting policy is likely disabled. Re-enable it as shown in Step 2. Also check that the webinar is not in a channel that has restricted access.

Confirmation Email Goes to Spam

Sometimes the email is sent but lands in the spam folder. Ask the registrant to check spam. In the Teams admin center, verify the domain of the sender. If you use a custom domain, ensure the SPF and DKIM records are valid. This is not a policy issue but a mail delivery issue.

Registrants Cannot Sign Up at All

If the registration form does not appear, the Webinar registration setting in the Meeting policy is disabled. Re-enable it. Also confirm that the user has a valid Teams license that includes webinars, such as Teams Premium.

Meeting Policy vs Webinar Policy: Key Differences for Confirmation Emails

Item	Meeting Policy	Webinar Policy
Where to configure	Teams admin center > Meetings > Meeting policies	Teams admin center > Meetings > Webinar policies
Controls registration on/off	Yes, via Webinar registration and Registration link	No, it only controls approval and notifications
Controls email timing	No	Yes, via Registration approval mode
Typical cause of missing confirmation	Disabled registration or link	Manual approval mode

After you fix the policy, registrants will receive confirmation emails again. To verify the fix, create a test webinar and register with a secondary account. For advanced control, consider using the Registration approval mode setting with manual approval to review attendees before sending emails. Always wait 15 minutes after a policy change before testing.