EmailOS Echo Command Documentation

The mailos echo command sends a message to the email address MailOS resolves for the current directory. It is a self-send shortcut built on the same delivery path and flags as mailos send.

Basic Usage

mailos echo --subject "Test" --body "Checking MailOS delivery"

Use --dry-run to preview the resolved sender and recipient without sending:

mailos echo --subject "Test" --body "Checking MailOS delivery" --dry-run

Recipient Resolution

mailos echo fills --to automatically. It resolves the recipient in this order:

1. MAILOS_FROM_EMAIL
2. MAILOS_EMAIL_ADDRESS
3. The nearest parent emailos.json or emailos.toml from_address or email_address
4. The default MailOS account in the user's machine config, such as ~/.email/config.json

When mailos echo falls back to the default machine config, it also uses that account for sending.

Relationship to Send

mailos echo reuses the normal mailos send flags and delivery behavior. You can use send options such as:

mailos echo --subject "Plain test" --body "Hello" --plain
mailos echo --subject "File test" --file message.md
mailos echo --subject "Preview" --body "Hello" --dry-run

mailos echo is intentionally for self-sends. If you need to send to another address, use mailos send --to recipient@example.com.

Useful Checks

Inspect the resolved project send identity:

mailos whoami
mailos env

Confirm the message in the sent folder:

mailos sent --number 5 --days 1 --save-markdown=false