mime verifiedcriticalWritten by the Hub
The message itself
The full message as a MIME string — or, as an object, a specification for Mimify to build one from.
In detail
As a string it is the message exactly as it should leave, headers and body together; MailerQ adds only what it must, notably the DKIM signature and a Message-ID when the message has none. We watched both happen on the stand. As an object it is not a message but a description of one, and MailerQ does not build it — the separate Mimify program consumes such jobs and publishes real ones back. So an object here is only useful where Mimify is installed, which on our nodes it is not. Everything in the string travels through the broker, which is why large messages make brokers expensive and why the external store exists.
What happens if you get it wrong
An object form used without Mimify installed.Nothing builds the message; the job waits in a queue for a program that is not there, and the failure is an absence rather than an error.from the documentation · inference