Markus Stumpf wrote:
> The problem we had is that we have users that depend on receiveing
> emails even from relay open mailservers, because they have business
> partners that use these servers.
> So blocking them is not an option for us as their ISP (we did, and we
> had to stop it). You can argue with your customers, but if they loose
> money or don't get some urgent data they don't care about SPAM.
In our experience contacting the people running the business running the
open relay did wonders for all concerned.
We didn't talk to the tecchies - they after all were the morons who
didn't know what they were doing by setting up the open relay in the
first place - but the business directors, who were very interested to
learn that their admins were incompetant and their mailservers were
blacklisted on the internet.
The open relays were usually fixed shortly after that.
Regards,
Graham
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