On Fri, 19 May 2017 10:53:56 -0400 Viktor Dukhovni <postfix-us...@dukhovni.org> wrote:
> > So, according to you I should add: > > > > smtp_destination_concurrency_limit = 1 > > That's too fragile, at least without further tuning. With this, > when any connection fails the destination concurrency is reduced > to 0, and the destination is immediately throttled. ok > If you don't send much mail, and latency is acceptable, you could > start going from 20 down 10 or 5. Anything much lower and you > need to start tuning the advanced feedback controls... > > Try and get whitelisted by outlook.com, that's better than taking > evasive countermeasures. We tried but no way. Next monday we'll have another try. It seems that it has to do with ip and domain reputation, there have been some issues in the past. We'll find that out next week I hope. R. -- richard lucassen http://contact.xaq.nl/
