WPO365 | Microsoft 365 Graph Mailer is a WordPress plugin designed to facilitate the sending of transactional emails via Microsoft Graph API. As Microsoft has phased out basic authentication for SMTP, this plugin offers a modern alternative that allows users to send emails from Microsoft 365 or Exchange Online accounts. It supports both delegated and application-level permissions, ensuring flexibility in email management. Users can choose to send emails as HTML, save sent emails in the mailbox's Sent Items folder, and include attachments from their WordPress site.

The plugin features an easy configuration process, complete with a detailed guide and video tutorial. It also allows for sending test emails with CC and BCC options. Premium extensions enhance functionality, offering features like email logging, support for large attachments, and dynamic send-from capabilities. Overall, WPO365 | Microsoft 365 Graph Mailer provides a robust solution for managing WordPress email communication securely and efficiently.