On 02-04-2022 4:19 pm, Viktor Dukhovni wrote: > On Fri, Feb 04, 2022 at 04:16:47PM -0500, post...@ptld.com wrote: > >> In using address verification it is very clear that any "reject" from >> the remote mail server would result in the email triggering the >> verification to be rejected. But i do not see anything about 4xx defer >> responses. What if the remote server is doing gray listing and >> responds with a 4xx during the probe process? >> >> How does postfix handle this? Does it also give the email triggering >> the verification a 4xx or rejects it with a 5xx? > > Postfix does the only right thing.
That is a confusing response. It almost reads like a joke but Viktor never jokes. Which is the "right thing"?