I just got back from a 2 week holiday and have been reading this thread
with a lot of interest. I thought I would respond and try to explain the
situation from our perspective. I could write an entire essay on this,
but I have tried to be as concise as possible, though it is still a wall
of text.

Am 11.07.2017 um 13:00 schrieb Felix Schwarz:
> If I'm not mistaken also Hetzner's mail admins are reading this list
so maybe
> they can convice their management to do something about the bad
reputation.

Management was convinced over a year ago. Our internal abuse processing
and handling was reviewed, and made stricter. I will admit that we used
to be too lenient in that regard, but that is no longer the case (at
least not intentionally).

The results have been very encouraging. The leading blacklist and
reputation providers that have easy network/ASN lookups show a decrease
of at least 60% in “bad” IPs within our network within the last year.
This applies to Spamhaus, SpamCop, SORBS, UCEPROTECT, Senderbase (now
Talos Intelligence) and the Microsoft SNDS. The amount of abuse
complaints we get has also decreased substantially. All of this, even
though we are continually growing.

I’ve been in contact with a number of people this past year and many of
them have acknowledged that our network no longer deserves a bad
reputation. However, I can fully understand that not everybody will
agree, and I believe there are 3 main reasons for that.

1) Historical. I wil be the first to admit that in the past we were too
lenient with spam-handling, and there was more spam leaving our network
than there should have been. This can mean that if somebody gets spam
from our network today, they think "great, Hetzner hosting another
spammer", even though the message was due to a compromised account (see
point 2), and the overall amount of spam is much lower than it was
historically.

2) Constant spam. Due to the nature of our business (IAAS provider), the
fact is that there will always be a certain level of spam leaving our
network. Brandon actually mentioned exactly this.

Am 10.07.2017 um 21:37 schrieb Brandon Long:
> They may not even be renting directly to spammers, but their users are
> getting compromised and sending spam and other crap from their
servers.  We
> see clickbot and other fraud farming from those IP ranges as well.
>
> It is an unfortunate situation, and challenging, no doubt.

We have over a million IP addresses, and the vast majority of those are
allocated to unmanaged servers. Short of blocking all email
communication from our network, there are always going to be customers
sending emails, and thus there will always be some who send spam. Our
job is to minimize that as much as possible. Anybody who has worked an
abuse desk will know how hard that is, especially at an IAAS provider
like ourselves.

We don’t intentionally harbor any spammers, and any that manage to get
through our checks (we block dozens of new orders a day) and start
sending spam, are soon terminated. We have a few email marketers, but
the vast majority of the spam leaving our network is from compromised
accounts, for which we can do very little.

3) Perspective. As with so many things in life, what you think of
something depends greatly on your point of view, and the assumptions and
expections you (sometimes subconsciously) bring along. If somebody
assumes that there should be zero spam leaving our network, they will
always be disappointed.

I believe a perfect example of these different perspectives is found
within this thread.

Am 11.07.2017 um 09:11 schrieb John Levine:
> Hetzner gushes spam, and I've had most of their
> IP ranges totally blocked for years.

Am 13.07.2017 um 20:15 schrieb John Levine:
> Look for yourself:
>
> http://www.taugh.com/sp.php?c=&i=78.47.0.0&j=78.47.255.255&k=puavppaxru

First of all, thank you for that link John, I appreciate you sharing
that information. It’s always good to have additional information about
our network, and I will be checking that link regularly.

I have no idea what assumptions John has, but the comment about
“gushing” spam made me believe that the evidence would show a list of
hundreds, if not thousands of IPs, sending spam every few days over the
course of many months/years.

What I see instead is almost exactly the opposite. This year (2017),
there have been a total of 89 spam messages, from a mere 44 IPs (which
currently belong to 44 separate customers of ours). These 44 IPs
represent 0.00067% of the IPs in the /16 range (65,536 IPs total). None
of the IPs sent spam regularly, and all of them stopped within a few
days. 99.99933% of IPs did not send spam.

To me, this is a clear sign that we are doing a good job. Yes, there is
a “trickle” of spam, and I would dearly love to completely cut that out,
but as mentioned above, that is unrealistic. We are trying to minimize
the amount of spam, and I believe this shows we are doing exactly that.

Now, I’m biased, and I’m obviously going to defend the company I work
for, but I truly believe we are on the right path. There is still a lot
that can be done, and is in the process of being done, but the results
from the past year show that we are serious about this. This is a
never-ending process and we are far from perfect, but we are working on
it. Anybody can check our network (and compare it to those of our
competitors) and come to their own conclusions.

If anybody has complaints or information about our network we have a
functioning abuse department with real humans. If something isn’t being
handled satisfactorily, you can request it to be escalated, or you can
contact me directly.

TL;DR We care about spam and believe that the evidence shows that.

Kind regards
Bastiaan van den Berg
--------------
Hetzner Online

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