Re: [mailop] how does mailhash.josephlist.net work?
> Yes, there are joe jobs. No, there are not very many. Yes, everyone can send emails containing targeted URI to known spamtraps, which then will extract and feed those URI to URI Blacklists. So I guess this works on in similar way, just for email addresses found in emails. Joe-Jobs are an issue, thankfully not too much of an issue. Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G-Leiter Commerce Kunden __ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 PrattelnFax +41 61 826 93 01 Schweiz Web http://www.imp.ch __ ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] how does mailhash.josephlist.net work?
> What I found out is that the email content is searched for email > addresses and if some hash of that email address matches, the email is > rejected. It's the full email address. Only the domain part does not > trigger the issue. Yeah. To my knowledge, the idea of hash blocklists was first publicly proposed in M3AAWG 41, October 2017. https://msbl.org/ebl.html has the details. Ever since, Spamhaus HBL has come up (to address not only email addresses but also files and cryptocurrency wallets) and it seems that even more people have taken up the mantle now. -- Atro Tossavainen, Founder, Partner Koli-Lõks OÜ (reg. no. 12815457, VAT ID EE101811635) Tallinn, Estonia tel. +372-5883-4269, https://www.koliloks.eu/ ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] how does mailhash.josephlist.net work?
It appears that Peter N. M. Hansteen via mailop said: >On Tue, Apr 02, 2024 at 04:09:48PM +0200, Benoit Panizzon via mailop wrote: >> I came across emails rejected by mailhash.josephlist.net >> >> reason: 550 5.7.1 block listed email address s...@example.com by >> mailhash.josephlist.net (c559b92e0e284312b26c88d4bb707d14) > >"block listed email address"? > >This sounds like somebody who never heard about joejobs, but who am I to judge? I get a great deal of spam that says to respond to a dropbox somewhere else. If they're looking for those dropboxes, that makes some sense. Yes, there are joe jobs. No, there are not very many. R's, John ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] how does mailhash.josephlist.net work?
On Tue, Apr 02, 2024 at 04:09:48PM +0200, Benoit Panizzon via mailop wrote: > I came across emails rejected by mailhash.josephlist.net > > reason: 550 5.7.1 block listed email address s...@example.com by > mailhash.josephlist.net (c559b92e0e284312b26c88d4bb707d14) "block listed email address"? This sounds like somebody who never heard about joejobs, but who am I to judge? - P -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team https://bsdly.blogspot.com/ https://www.bsdly.net/ https://www.nuug.no/ "Remember to set the evil bit on all malicious network traffic" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds. ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
[mailop] how does mailhash.josephlist.net work?
Hi List I came across emails rejected by mailhash.josephlist.net reason: 550 5.7.1 block listed email address s...@example.com by mailhash.josephlist.net (c559b92e0e284312b26c88d4bb707d14) What I found out is that the email content is searched for email addresses and if some hash of that email address matches, the email is rejected. It's the full email address. Only the domain part does not trigger the issue. The hash at the end of the error message looks like an MD5 hash. But that hash does not match (tested lower and upper case) the email address listed. Also, if I send two email containing the email address triggering the block, I get two different hashes. So maybe the hash is not derived from the email address? Does anyone know how mailhash.josephlist.net operates and the reason why they list hashes of email addresses found in email bodies? Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G-Leiter Commerce Kunden __ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 PrattelnFax +41 61 826 93 01 Schweiz Web http://www.imp.ch __ ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
