In case it wasn't sarcasm: I would say it does not. What would, would be a note on the website explicitly mentioning that Qmail is unmaintained, and people should either take over maintenance or use something else.
Seeing no such disclaimer at https://cr.yp.to/qmail.html means DJB is (possibly unintentionally) still vouching for it. Right now in 2020.
Seeing no such disclaimer at https://cr.yp.to/qmail.html means DJB is (possibly unintentionally) still vouching for it. Right now in 2020.