> On 22 Oct 2021, at 11:45 am, admin--- via Exim-dev <exim-dev@???> wrote:
>
> For what it's worth, by experience, you should avoid sending anything to any
> yahoo domains using pipelining. They will just retaliate on you if you do it,
> they will, for example, greylist the servers using pipelining but will allow
> the other ones.
> If this is really an exim bug, it's still worth correcting it, but you should
> really disable pipelining to yahoo, even when this bug will be resolved.
Why would they bother advertising PIPELINING, if they don't
actually mean to tolerate its use? That does not seem right...
--
Viktor.