Dnia 28.08.2021 o godz. 03:00:37 Jarland Donnell via mailop pisze: > > As far as UCEPROTECT Level 3 goes, it's a pretty bad one. At that > point it most likely means that your VPS provider has a significant > and recurring problem with spam that they're not addressing. I've > had a lot of people tell me they landed there unfairly, and yes I > understand that their pay for faster removal (which doesn't > guarantee you won't be relisted, btw) is bad optics, but I've yet to > meet someone on the list that I couldn't see valid reason for by > searching my own mail server logs. You're probably not getting off > of their level 3 list without your VPS provider making significant > changes to how they do business. > > But with all that said, I can't say whether or not Yahoo even uses > that list, so the listing may be irrelevant.
Almost nobody is using UCEPROTECT Level 3 due to their aggressiveness. Few months ago they lowered their threshold for the number of spamming IPs in a given block that triggers the listing and the effect is that they currently list pretty much everyone ;). So from what I know, nobody is taking them seriously, maybe except for beginner mail admins who have no experience and don't know what that list is. They even themselves advise *against* using that list: http://www.uceprotect.net/en/index.php?m=3&s=5 "This blacklist has been created for HARDLINERS. It can, and probably will cause collateral damage to innocent users when used to block email." "By using Level 3 for blocking, be prepared to occasionally lose some required mails too. DO NOT BLAME US, YOU HAVE BEEN FOREWARNED! The recommended use of Level 3 is incorporating it into a scoring system, to give e.g. 2 points on a ‘match’ where 5 or more points trigger a spam tag." My provider also gets often listed on UCEPROTECT Level 3, I'm signed up for blacklist monitoring on MXToolbox and repetitively get emails about being listed and delisted on that RBL. What is important for the original poster to know, I think, is that UCEPROTECT Level 3 does not list individual IPs. It lists whole netblocks. If more than a given number of IPs in a netblock have been caught spamming, they list the whole netblock (for example in case of my provider the range has 3813632 IP addresses and the threshold to get listed on UCEPROTECT Level 3 is 1907 - according to the data from their website - so it is about 0,05% of the whole range). So the listing has usually nothing to do particularly with your server, as they don't list you individually, they list the whole network you belong to. You may have everything configured correctly and never send any spam and you still will be listed. Also, you can't get delisted from that list individually, only your provider can delist the whole network. And because UCEPROTECT requires payment for delisting, most providers treat this as an extortion and have a policy not to pay them. They also provide a paid "whitelist" service, that allows to exclude your particular IP address from Level 2 or Level 3 listings (if you are not listed in Level 1, ie. are not a spammer yourself). You have to pay every month or you can pay in advance for a year or two years. But I'm not sure if anybody uses that service at all. -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub." _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
