.TH POP 1 "April 2026" "pop 1.0" "ProtonMail CLI" .SH NAME pop \- A ProtonMail CLI tool written in Go .SH SYNOPSIS .B pop .RI [ command ] [ options ] .SH DESCRIPTION .B pop is a command-line interface for interacting with the ProtonMail API. It provides authentication, session management, and secure PGP encryption support. .SH COMMANDS .TP .B login Authenticate with ProtonMail API using interactive prompts with masked password input. Supports two-factor authentication (2FA). .TP .B logout Clear stored session credentials and end current session. .TP .B session Display current session information including user ID and authentication status. .SH OPTIONS .TP .BR -h ", " \-\-help Show help message for the command. .TP .BR -v ", " \-\-version Show version information. .SH CONFIGURATION Configuration file: ~/.config/pop/config.json Default configuration: .RS .nf { "api_base_url": "https://api.protonmail.ch", "timeout_sec": 30, "rate_limit_requests": 100, "rate_limit_window_sec": 60 } .fi .RE Session file: ~/.config/pop/session.json .SH FILES .TP .B ~/.config/pop/config.json Application configuration .TP .B ~/.config/pop/session.json Session credentials and tokens .TP .B ~/.config/pop/attachments/ Attachment storage directory .SH EXAMPLES .TP .B pop login Start interactive authentication with ProtonMail .TP .B pop session Display current session information .TP .B pop logout End current session and clear credentials .SH EXIT STATUS .TP .B 0 Successful execution .TP .B 1 General error .TP .B 2 Authentication error .SH DIAGNOSTICS Errors are reported to stderr with descriptive messages. Common issues include: - Network connectivity problems - Invalid credentials - Session expiration - Configuration file parse errors .SH BUGS Report bugs at https://github.com/frenocorp/pop/issues .SH AUTHOR FrenoCorp Development Team .SH COPYRIGHT Copyright (c) 2026 FrenoCorp. MIT License.