On Nov 25 10:21:06 UTC 2018, Artem Dziubenko wrote:
The one thing which is coming to my mind is to write some article in the internet about RBL Services - that some of them are against privacy or they do not understand what they are doing and how big stupid impact they generate on the communication in the internet.
Have to point out you are arriving *very* late to the debate about DNSBLs / rDNSBLs. Has been settled for years the operators of these services have the freedom of speech to publish the lists and individual MTA operators have the right to use them if they wish. Zero chance anyone will change their mind at this stage of the game.
I misread the original post and see you are running a non-exit. Generally this should be no problem since critical lists (no more than five exist, is more like three) do not include non-exit relays. My long running guard node is on just seven BLs (out of 226) of no consequence.
ubl.nszones.com (fake) rbl.rbldns.ru fulldom.rfc-clueless.org postmaster.rfc-clueless.org all.s5h.net netblockbl.spamgrouper.to dnsbl.spfbl.net
No one has heard of any of these and nobody uses them.
To the extent a small BL appears to be impacting your mail delivery, usually you can ask them (nicely) to remove the IP in question explaining in technical terms why the IP should not be included. Some of the above are concerned about improper reverse DNS and certainly if you run an MTA the single biggest thing that can be done to obtain decent delivery is configure proper matching forward and reverse DNS entries with a not-stupid domain (e.g. no IP address information coded in it).
If an IP is not on Spamhaus and not on Barracuda it should have no problem obtaining a decent reputation, notwithstanding Microsoft's Outlook service. M$ has idiotic filtering criteria: essentially "guilty until proven innocent and give us money while you are at it."