Delete a sender when you no longer want it available for your event emails. You need permission to manage the event. Deletion cannot be undone, and the effective sending address can change.
Delete the sender
Open Email & SMS > Emails.
Open the toolbar three-dot menu and select Manage senders. You can also use Event Settings > Email & SMS > Email Senders.
Find the sender, open its row Actions menu, then select Delete.
Read the confirmation and confirm only when you are ready to remove it.
Check emails after deletion
Open Email & SMS > Emails and review the sender assigned to each affected email. Select a remaining ready sender and save any changes. You can use Preview email to inspect the content without sending, or Send test to send a copy to your own dashboard-user address.
What happens to sending
Emails without an assigned sender can use the event's default sender. If no active sender remains, HeySummit creates a managed sender. Do not assume deletion assigns every affected email to the first remaining sender or guarantees delivery. Custom sending still requires email verification, domain authentication and the appropriate plan.
Creating a Custom Email Address explains sender setup.