Changelog

Updates to EmailOS, organized by week.

Week of May 18, 2026

mailos whoami for resolved send identity. Run mailos whoami from any project folder to see exactly which From address, signature, and credentials mailos send will use, along with the source each value resolved from. See Env Command.
mailos env --export for shell-safe send defaults. Emits non-secret send values (MAILOS_EMAIL_ADDRESS, MAILOS_FROM_EMAIL, MAILOS_FROM_NAME) as export statements so AI clients, IDE integrations, and other tools that only read real environment variables can pick up values resolved from a project emailos.json. Run eval "$(mailos env --export)". Secrets are never exported. See Env Command.
Apple Mail forwarded context in mailos send. When you paste forwarded content copied from Apple Mail into a send body, EmailOS now detects the forwarded headers and threads the outgoing message correctly. See Forward Command and Send Command.
Forward from a macOS Mail deeplink. mailos send --forward-message-link accepts message://... links copied from Mail.app or Raycast, while --forward-message-id remains the portable raw Message-ID option. See macOS Mail Integration and Send Command.

Project sender policy is now authoritative. When the nearest emailos.json sets from_address, it controls the outgoing From address for mailos send and overrides MAILOS_FROM_EMAIL. Passing --from or --account no longer changes the sender for a project that pins one — the CLI warns and keeps the project value. Update emailos.json to change the sender. See File Config and Send Command.
mailos repo now reports emailos.json. The repo diagnostic command lists the project config alongside .env.mailos, .env, and ./.email/config.json, so you can see at a glance which files contribute to send resolution. See Repo Command.

Better spacing before inline attachment previews. Send output now includes consistent spacing before inline attachment previews, making the rendered email easier to read.
More reliable Apple Mail deeplinks. MailOS now emits fully encoded message://%3c...%3e links and checks the selected Mail message before slower mailbox scans when resolving Apple Mail forwarding context.