compose-hooks run before submitting an e-mail.
They perform draft validation and/or transformations.
If a hook encounters an error or warning, it will show up as a notification.
The currently available hooks are:
- past-date-warn
Warn if Date header value is far in the past or future.
- important-header-warn
Warn if important headers (From, Date, To, Cc, Bcc) are missing or invalid.
- missing-attachment-warn
Warn if Subject, draft body mention attachments but they are missing.
- empty-draft-warn
Warn if draft has no subject and no body.
They can be disabled with [composing.disabled_compose_hooks] setting.
Manos Pitsidianakis