to verifiedimportant
Which server received it
The address of the receiving server the attempt talked to.
In detail
Names the actual server rather than the domain, which is what makes it possible to see that many domains share one provider — the same insight MX grouping formalises. One subtlety we measured: with a debugging sink configured, this field still reports the real destination while the connection went elsewhere. So it records what the engine intended, not what the packets did — worth knowing before trusting it as proof of delivery.
What happens if you get it wrong
A node with a debugging sink configured.Results name real receivers for mail that never left the machine. Measured on the stand.verified by experiment · inference