Never had delivery issues from hetzner-blocks so far (crossing fingers) but I'm 
aware of the past.



Looks like there is at least one RBL around, that list our IP as dynamic.

https://www.rbl-dns.com/bl?ip=116.203.31.6

One just have to pay to get de-listed. What a wonderful world.



Stefan



-----Ursprüngliche Nachricht-----
Von: Andrew C Aitchison <[email protected]>
Gesendet: Montag 9 März 2020 10:47
An: Stefan Bauer <[email protected]>
CC: mailop <[email protected]>
Betreff: Re: [mailop] Ewetel postmaster wanted - your IP 116.203.31.6 seems to 
be dynamic - please use the smarthost of your ISP



On Mon, 9 Mar 2020, Stefan Bauer via mailop wrote:

> Any ewetel postmaster around? One of our IPs (subject) get flagged
> as dynamic during delivery to ewetel. However this IP is static.

I am not surprised that Ewetel has guessed wrong:
  whois 116.203.31.6 -h whois.ripe.net
gives a /16 belonging to our old friends Hetzner.

-- 
Andrew C. Aitchison                                     Kendal, UK
                        [email protected]
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