dsn-ret verifiedWritten by the Hub
How much of the message comes back
in the configuration this is a line
dsn-ret: HDRSWhether a notification carries the whole original message or only its headers.
Values
- Values
FULL · HDRS- Default
HDRS · taken from the build- applying
restart required- where it can be set
in the config file · with a startup flag · as an environment variable
In detail
Headers by default, which is the considerate choice: returning the full body multiplies traffic and sends the recipient's content back out again — to an address that, on a bounce, may not be the one that sent it.