Postie is a WordPress plugin that enables users to create posts via email, offering advanced features beyond the default Post by Email functionality. It supports both IMAP and POP3 protocols with SSL/TLS encryption, allowing for secure email retrieval. Users can control who is permitted to post by email and set default values for categories, status, post formats, post types, and tags. The plugin can process plain text or HTML emails, automatically strip signatures, and handle various attachments, including images, videos, and audio files. Additionally, Postie offers template customization for different media types and allows email replies to become comments. Developers can extend its functionality through a comprehensive set of filters and actions. However, it’s important to note that Postie hasn’t been tested with the latest three major WordPress releases, which may affect its compatibility with newer versions.