Penguin Mail is a free open-source Rust email client for Linux with optional AI

Penguin Mail 1.0.5 is a free, GPL-3.0-or-later Rust email and calendar client for x86_64 Linux that handles Gmail, Microsoft, IMAP and POP3 accounts in one inbox. It uses GnuPG for OpenPGP and S/MIME, and its assistant is off until a user picks a model, which can run locally through LM Studio or Ollama.