Pop is a command-line email client and utility used to compose and deliver electronic messages directly from the terminal. It functions as a dispatch system that routes messages through SMTP servers or third-party API services.
The tool includes a markdown composer that transforms markdown text into formatted HTML for email bodies. It manages sender identities and server credentials through a combination of persistent default configurations and environment variables.
The system supports appending binary data from the local filesystem as attachments and provides a pipeline for automated email dispatch via scripts or manual terminal commands.