Demo
Demo

Knowledge base

dsn-advertise verifiedWritten by the Hub

Announce DSN support on intake

in the configuration this is a linedsn-advertise: 1

Whether the built-in SMTP server advertises the DSN extension, letting submitting clients request notifications per message.

Values

Values
1 · 0
Default
1 · 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

On by default. It concerns the intake rather than delivery: with it advertised, a submitting client may attach DSN parameters to MAIL FROM and RCPT TO, and those override the node's own dsn-notify for that message. So a stock node produces no notifications by default but will produce them if asked — which is a sensible division, and worth knowing before wondering where a notification came from.