Am 20.01.22 um 13:37 schrieb Alessandro Vesely:
However, it is the ISPs' customers who are the effective users of those IPs. Any complaint, whether reporting spam or botnet activity, can probably be handled more effectively by the people who run the systems connected to a given IP than the actual owner.
In a considerable amount of cases, the ISP's customer is also the spammer. I would prefer not to talk to them when complaining about their behavior - in the best case, they will ignore me, in the worst case, they might do something in revenge.
The IP owner is the one who can pull the plug on misbehaving customers. As it is much easier to identify IP owners, I can collect reputation data about who I can trust to handle my abuse complaint responsibly, who will just ignore it, who will forward it unedited to their customer. Depending on this assessment of their trustworthiness, I will or won't report.
There are very few cases where reporting to end users makes much sense. Either they operate their system responsibly including monitoring the mail rejects and bounces, then they already know there's something that needs to be fixed, or they don't, and most often don't care, and my complaint will probably not change that.
Cheers, Hans-Martin -- To unsubscribe from this mailing list, get a password reminder, or change your subscription options, please visit: https://lists.ripe.net/mailman/listinfo/anti-abuse-wg
