Iris reads Gmail, Microsoft 365, Outlook.com and any IMAP account, such as iCloud, Fastmail and Yahoo, and finds the server settings for you. It talks to Google and Microsoft straight from your Mac. No server of ours sits in between, and nothing about you or your mail is collected.
Every account, one inbox
Gmail, Microsoft and IMAP side by side, each with its own folders and labels, or all of them together.
A calendar that answers invitations
Week, month and agenda views, with invitations you can accept right from the message.
Private by default
Remote images stay blocked until you allow them, mail is read with scripts off, and sign-in tokens live in the macOS Keychain.
Signed and encrypted mail
OpenPGP and S/MIME through your own GnuPG. Iris never holds your private keys.
Write the way you like
Formatting as you type or Markdown, Undo Send, Send Later, templates and an outbox that retries for you.
An assistant, if you want one
Off until you choose a model. A local model keeps everything on your computer.
Status
Iris is a personal project by Alberto Barrago, in active development and not yet available to download. It is a modified version of Penguin Mail, a GTK mail client for Linux, and is free software under the GNU General Public License, version 3 or later.