DELETE
Delete an email
Hard-deletes the email. Its webhook delivery records are removed, and its stored blobs (raw MIME and attachments) are deleted from storage on a best-effort basis. This is irreversible.
string
required
The email id (em_…).
Deleting an email does not refund billing usage — usage is counted when a message is received.
Returns 404 if the email doesn’t exist or isn’t yours.