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.
--
Viktor.
