Discover Websites to Undo Send.
Recall recently sent emails to correct mistakes or prevent sending unintended messages.
Nylas Mail, an extensible open-source email client, offers a unified inbox, robust search, and calendar integration. It supports multiple accounts and provides features like email tracking and undo send, aiming to enhance productivity and email management for users.
Outlook.com is a free, personal webmail service offered by Microsoft, providing robust email management with integrated calendar, contacts, and cloud storage.