June 2022 - nexa - server-nexa.polito.it

Re: [nexa] SPAM blacklisting is out of control (totally, n.d.r.)

by Alberto Cammozzo

Ho ragionevolmente risolto questo problema implementando SPF, DKIM e DMARC nei miei server SMTP. Per le verifiche ho trovato utili: <https://mxtoolbox.com> e <https://mecsa.jrc.ec.europa.eu> ciao, Alberto On 08/06/22 19:04, 380° wrote: > Buonasera nexiane, > > executive summary: «the Ads are sent from legitimate senders, which are > not on any blacklist»; chi usa una RBL danneggia anche te, digli di > smettere. > > ci risiamo, recentemente una mia email è stata respinta dal server del > mio destinatario perché l'IP del server di posta del mio provider [1] è > finito in una di quelle simpatiche liste di proscrizione dette RBL > (Real-time Blackhole List), tipo: > > --8<---------------cut here---------------start------------->8--- > > host mailserver.del.destinatario[IP.del.mailserver] said: 554 5.7.1 > Service unavailable; Client host [IP.del.mio.mailserver] blocked > by RBL; Blocked - see > https://www.spamcop.net/bl.shtml?IP.del.mio.mailserver (in reply > to RCPT TO command) > > --8<---------------cut here---------------end--------------->8--- > > in pratica il server del destinatario si rifiuta di accettare il > messaggio ancora prima di verificarne "la spammosità" perché l'indirizzo > IP del server di posta che uso è incluso nella RBL gestita da > spamcop.net (ma ce ne sono a bizzeffe e ogni gestore può usarne una o > più a sua scelta) > > so per certo che cose analoghe succedono regolarmente anche ad alcune > nexiane > > come gesto simbolico propedeuto ad un insperato evento catachico del > "mondo email", voglio condividere con tutti i discriminati di questo > "mondo" un recente articolo che ben illustra la situazione e mi toglie > le parole di bocca: > > https://blog.roastidio.us/posts/spam_blacklists_are_out_of_control/ > «SPAM blacklisting is out of control» > February 4, 2022 > > --8<---------------cut here---------------start------------->8--- > > [...] Yesterday, I suddenly found out that my IP is blacklisted! > Specifically, I am on UCEPROTECTL2 and UCEPROTECTL3. I don’t SPAM, so > how can it be? Did I get pwn’ed? > > It turns out that my server is fine. However, they think my IP is in a > bad neighborhood: Someone else using the IPs from the same hosting > company as I do is spamming. > > So what should I do? > > I see three options: > > [...] > > Finally, I can pay up. UCEPROTECT conveniently embedded a link to > http://www.whitelisted.org/, which offers to whitelist my IP. Had I been > on the whitelist, the blacklists would not concern me. > > [...] There is only one problem: > > Registration is available for 1 Month (25 CHF), 6 Month (50 CHF), 12 > Month (70 CHF), 24 Month (90 CHF) > > To me this is highway robbery. 25 CHF per month is five times the amount > I paid to my hosting company for the VPS! I got the cheap VPS because my > hosting company is in a fierce competition with other hosting companies; > how many whitelisting companies are out there? Did I sense monopoly? > > Are the blacklists that useful? > > [...] I know I can use a blacklist and cut down the volume of unwanted > emails to my inbox, but the difference won’t be much, because the Ads > are sent from legitimate senders, which are not on any blacklist. Even > if they were, they surely are rich enough to pay the 25 CHF per month > whitelisting fee. > > What is SPAM, but some form of advertisement from poor people, with > questionable intentions and potentially harmful content? Now email > advertising is a multi billion dollar industry, while SPAM has been > demonized over the years. I can’t help to wonder if it has anything to > do with the rise of big email vendors, who with no exception are Ads > platforms themselves. Your “free” personal email accounts are nothing > but an Ads delivery pipeline customized to exploit you. Your paid and > hosted corporate email accounts are run by the same big email > vendors. How much better can they be? The big email vendors love to > enforce onerous rules for SPAM blocking; is it for their users, or for > themselves? > > The problem of SPAM control boils down to the issue of signal to noise > ratio that one can tolerate. More filtering leads to higher signal to > noise ratio, with collateral damages such as filtering out some real > signals. To me, an intelligent user armed with a good email client, one > trash email would only cost me half a second to glimp through. On the > other hand, if a legitimate email from a future friend or a potential > business associate were accidentally blocked, the lost opportunity cost > is several magnitudes higher. From a cost benefit analysis point of > view, I cannot justify blacklisting IPs in my email setup; and I don’t > think I am alone. > > If by any slim chances, you happen to be in charge of an email setup, > please, don’t sink to the low of the big email vendors. IP blacklists > have their place, however, please don’t use the overarching neighboring > blacklists such as UCEPROTECTL2 and UCEPROTECTL3. > > --8<---------------cut here---------------end--------------->8--- > > ...e manco le altre, che hanno /tutte/ problemi del tutto analoghi [2] > > Per chi avesse voglia di "seguire il bianconiglio", questo thread su > Hacker News https://news.ycombinator.com/item?id=30222736 vi > guiderà fino alla sorgente a fare due chiacchiere con l'architetto, ma > prima bisogna scegliere la pillolina rossa B-) > > > saluti, 380° > > [1] uno grossino, che sa il fatto suo, chi volesse lo /trovasse/ > facilmente nei metatadi delle mie email; notare che - come ormai nel 99% > dei casi - posso inviare solo /autenticandomi/ col mio server di posta. > > [2] ad esempio sorbs.net: > https://en.wikipedia.org/wiki/Spam_and_Open_Relay_Blocking_System#False_pos… > ad esempio spamcop.net: > https://www.bleepingcomputer.com/news/security/spamcop-anti-spam-service-su… > > > _______________________________________________ > nexa mailing list > nexa(a)server-nexa.polito.it > https://server-nexa.polito.it/cgi-bin/mailman/listinfo/nexa

June 9, 2022

Re: [nexa] SPAM blacklisting is out of control (totally, n.d.r.)

by 380°

380° <g380(a)biscuolo.net> writes: [...] > Per chi avesse voglia di "seguire il bianconiglio", questo thread su > Hacker News https://news.ycombinator.com/item?id=30222736 vi > guiderà fino alla sorgente a fare due chiacchiere con l'architetto, ma > prima bisogna scegliere la pillolina rossa B-) interessante questo commento https://news.ycombinator.com/item?id=30225619: (e il relativo subthread!) --8<---------------cut here---------------start------------->8--- There is another solution besides changing IPs, using a paid sender, or filling out whitelist requests into the void: Get your legal department involved. We have repeatedly been taken off various public and private blacklists by having lawyers do their job. Once we went this path, it was like magic. Same day responses from those companies, and we haven't been on any blacklists for a couple of years. --8<---------------cut here---------------end--------------->8--- quindi la soluzione non sarebbe quella di fare buon uso della tecnologa ma quella di mettere di mezzo gli avvocati non so perché ma scorgo qualcosa di diabolico in tutto ciò... o forse ho solo visto troppi film [...] saluti, 380° -- 380° (Giovanni Biscuolo public alter ego) «Noi, incompetenti come siamo, non abbiamo alcun titolo per suggerire alcunché» Disinformation flourishes because many people care deeply about injustice but very few check the facts. Ask me about <https://stallmansupport.org>.

June 8, 2022

SPAM blacklisting is out of control (totally, n.d.r.)

by 380°

Buonasera nexiane, executive summary: «the Ads are sent from legitimate senders, which are not on any blacklist»; chi usa una RBL danneggia anche te, digli di smettere. ci risiamo, recentemente una mia email è stata respinta dal server del mio destinatario perché l'IP del server di posta del mio provider [1] è finito in una di quelle simpatiche liste di proscrizione dette RBL (Real-time Blackhole List), tipo: --8<---------------cut here---------------start------------->8--- host mailserver.del.destinatario[IP.del.mailserver] said: 554 5.7.1 Service unavailable; Client host [IP.del.mio.mailserver] blocked by RBL; Blocked - see https://www.spamcop.net/bl.shtml?IP.del.mio.mailserver (in reply to RCPT TO command) --8<---------------cut here---------------end--------------->8--- in pratica il server del destinatario si rifiuta di accettare il messaggio ancora prima di verificarne "la spammosità" perché l'indirizzo IP del server di posta che uso è incluso nella RBL gestita da spamcop.net (ma ce ne sono a bizzeffe e ogni gestore può usarne una o più a sua scelta) so per certo che cose analoghe succedono regolarmente anche ad alcune nexiane come gesto simbolico propedeuto ad un insperato evento catachico del "mondo email", voglio condividere con tutti i discriminati di questo "mondo" un recente articolo che ben illustra la situazione e mi toglie le parole di bocca: https://blog.roastidio.us/posts/spam_blacklists_are_out_of_control/ «SPAM blacklisting is out of control» February 4, 2022 --8<---------------cut here---------------start------------->8--- [...] Yesterday, I suddenly found out that my IP is blacklisted! Specifically, I am on UCEPROTECTL2 and UCEPROTECTL3. I don’t SPAM, so how can it be? Did I get pwn’ed? It turns out that my server is fine. However, they think my IP is in a bad neighborhood: Someone else using the IPs from the same hosting company as I do is spamming. So what should I do? I see three options: [...] Finally, I can pay up. UCEPROTECT conveniently embedded a link to http://www.whitelisted.org/, which offers to whitelist my IP. Had I been on the whitelist, the blacklists would not concern me. [...] There is only one problem: Registration is available for 1 Month (25 CHF), 6 Month (50 CHF), 12 Month (70 CHF), 24 Month (90 CHF) To me this is highway robbery. 25 CHF per month is five times the amount I paid to my hosting company for the VPS! I got the cheap VPS because my hosting company is in a fierce competition with other hosting companies; how many whitelisting companies are out there? Did I sense monopoly? Are the blacklists that useful? [...] I know I can use a blacklist and cut down the volume of unwanted emails to my inbox, but the difference won’t be much, because the Ads are sent from legitimate senders, which are not on any blacklist. Even if they were, they surely are rich enough to pay the 25 CHF per month whitelisting fee. What is SPAM, but some form of advertisement from poor people, with questionable intentions and potentially harmful content? Now email advertising is a multi billion dollar industry, while SPAM has been demonized over the years. I can’t help to wonder if it has anything to do with the rise of big email vendors, who with no exception are Ads platforms themselves. Your “free” personal email accounts are nothing but an Ads delivery pipeline customized to exploit you. Your paid and hosted corporate email accounts are run by the same big email vendors. How much better can they be? The big email vendors love to enforce onerous rules for SPAM blocking; is it for their users, or for themselves? The problem of SPAM control boils down to the issue of signal to noise ratio that one can tolerate. More filtering leads to higher signal to noise ratio, with collateral damages such as filtering out some real signals. To me, an intelligent user armed with a good email client, one trash email would only cost me half a second to glimp through. On the other hand, if a legitimate email from a future friend or a potential business associate were accidentally blocked, the lost opportunity cost is several magnitudes higher. From a cost benefit analysis point of view, I cannot justify blacklisting IPs in my email setup; and I don’t think I am alone. If by any slim chances, you happen to be in charge of an email setup, please, don’t sink to the low of the big email vendors. IP blacklists have their place, however, please don’t use the overarching neighboring blacklists such as UCEPROTECTL2 and UCEPROTECTL3. --8<---------------cut here---------------end--------------->8--- ...e manco le altre, che hanno /tutte/ problemi del tutto analoghi [2] Per chi avesse voglia di "seguire il bianconiglio", questo thread su Hacker News https://news.ycombinator.com/item?id=30222736 vi guiderà fino alla sorgente a fare due chiacchiere con l'architetto, ma prima bisogna scegliere la pillolina rossa B-) saluti, 380° [1] uno grossino, che sa il fatto suo, chi volesse lo /trovasse/ facilmente nei metatadi delle mie email; notare che - come ormai nel 99% dei casi - posso inviare solo /autenticandomi/ col mio server di posta. [2] ad esempio sorbs.net: https://en.wikipedia.org/wiki/Spam_and_Open_Relay_Blocking_System#False_pos… ad esempio spamcop.net: https://www.bleepingcomputer.com/news/security/spamcop-anti-spam-service-su… -- 380° (Giovanni Biscuolo public alter ego) «Noi, incompetenti come siamo, non abbiamo alcun titolo per suggerire alcunché» Disinformation flourishes because many people care deeply about injustice but very few check the facts. Ask me about <https://stallmansupport.org>.

June 8, 2022

Paper: A Genealogy of Digital Platform Regulation

by Alberto Cammozzo

Raccomando questo paper, ottimo sia per l'impostazione generale e la visione, sia per il framing multidisciplinare, sia per l'esposizione. Bietti, Elettra, A Genealogy of Digital Platform Regulation (June 3, 2021). <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3859487> [...] At its core, this Article is about three themes: regulatory deadlock in digital markets, neoliberal capture, and the need to deconstruct and historicize before reconstructing and imagining new digital spaces. I discussed the specificities and limits of neoliberal visions of platform regulation, particularly that they obscure the way private digital power manifests, escapes regulatory scrutiny, and can lead to harm to humans and ecosystems in ways that partly repeat the de-regulatory and cyberutopian errors of the past. I also began to show that any vision – regardless of whether it can be characterized as libertarian, liberal, neoliberal, or critical – is partly determinative of future trajectories and partly indeterminate and malleable. In other words, each of us lawyers, activists, policy-makers, scholars, students is constrained by our context but retains agency and the ability to change states of affairs. This leads me, in this concluding section, to a few final thoughts that will serve as guiding threads for moving forward. I have emphasized throughout this Article a distinction between libertarian, liberal, and critical perspectives, and more concretely between liberal and neoliberal understandings of platform regulation on the one hand, and critical and other egalitarian and socialist understandings on the other. I identified these categories for expository clarity and to show that noble ideas such as law and freedom can be instrumentalized for wrongful purposes if we fail to pay attention to their normative roots and effects in concrete circumstances. Unless subjected to iterative and situated moral scrutiny, these ideas risk acting as empty facades that favor powerful interests. Moving forward requires a methodological shift that entails two steps. First, it is essential to look at the past – the way past visions and attempts evolved, their positive and negative repercussions – to avoid repeating mistakes and to situate oneself more precisely and contextually in a long-term process of regulatory progression. Today, because of past failures to look at history and context, the primary options on the platform regulation table fall within the neoliberal playbook. Antonio Gramsci wrote that “[a] main obstacle to change is the reproduction by the dominated forces of elements of the hegemonic ideology. It is an important and urgent task to develop alternative interpretations of reality.”[...]

June 8, 2022

Consumer and digital groups in Europe and the U.S. call for a full ban on surveillance-based advertising - European Digital Rights (EDRi)

by Alberto Cammozzo

<https://edri.org/our-work/consumer-and-digital-groups-in-europe-and-the-u-s…> On 1 June, the Transatlantic Consumer Dialogue (TACD), that EDRi is part of, published a policy resolution on banning surveillance-based advertising <https://tacd.org/wp-content/uploads/2022/05/20220601-TACD-Surveillance-base…>. The invasive practices of collecting, sharing, and processing of individual data to deliver personalized advertising, has become the primary business model in the online advertising space. Surveillance advertising is promoted by the world’s largest technology companies, like Meta (Facebook) or Alphabet (Google), and is a key driver behind the spread of misinformation, undermining democratic discourse, economic and political equity, marketplace competition, privacy, public health, and basic consumer protections. As the potential for harm vastly outweighs the potential benefits, TACD calls for a full ban on surveillance-based advertising. [..]

June 8, 2022

The Decentralized Mystique

by J.C. DE MARTIN

The Decentralized Mystique New academic research on Bitcoin’s early years undermines its foundational myths of privacy through pseudonymity and decentralization, Jaron Lanier and Glen Weyl write. https://www.coindesk.com/layer2/2022/06/07/the-decentralized-mystique/ (Sent from my wireless device; please excuse brevity and typos (if any))

June 7, 2022

Memento | 152° Mercoledì di Nexa | Domani, ore 18.00

by Nexa Media

Gentilissimi, vi ricordiamo che *domani**,**alle ore 18.00*, si svolgerà il 152° Mercoledì di Nexa, con un incontro dal titolo: /*"Manipolazione e social media: il caso di studio del dibattito sull'immigrazione"*/. Ospite: *Giancarlo Ruffo* (Università degli Studi di Torino, Dipartimento di Informatica). Il Prof. Ruffo presenterà, nel quadro del dibattito scientifico e culturale relativo ai problemi di diffusione di fake-news, polarizzazione delle opinioni, camere d'eco, linguaggio d'odio e manipolazione del dibattito online da parte di bot e troll, il caso di studio riguardante il dibattito sull'immigrazione sviluppato su Twitter tra agosto 2018 e agosto 2019. Sarà possibile partecipare al seminario connettendosi al seguente indirizzo: https://didattica.polito.it/VClass/NexaEvent Sarà possibile guardare la diretta streaming dell'incontro al seguente link: https://youtu.be/GDtSbZRQhiw Maggiori informazioni sull'evento sono disponibili alla pagina: https://nexa.polito.it/mercoledi-152 Cordiali saluti,   -- Anita Botta Communication Manager Nexa Center for Internet & Society Politecnico di Torino – DAUIN Corso Duca degli Abruzzi, 24 - 10129 Torino web: https://nexa.polito.it/ mail: anita.botta(a)polito.it tel: 011 090 7219

June 7, 2022

Re: [nexa] Diffamazione su Youtube, Google condannata in Australia

by Carlo Blengino

No. L'Australia, che per inciso non ha una Carta Costituzionale a tutela dei diritti fondamentali (sic!), ha una legislazione totalmente differente (lo spiega in parte anche il pezzo) e la causa, civile e non penale, direi che non ha alcuna possibilità di esser resa esecutiva in U.S. nei confronti della Società. CB Il giorno lun 6 giu 2022 alle ore 17:44 don Luca Peyron < dluca.universitari(a)gmail.com> ha scritto: > Decisione che farà scuola? > > dl > > > https://www.milanofinanza.it/news/diffamazione-su-youtube-google-condannata… > > > > _________________________ > don Luca Peyron > Direttore Ufficio per la Pastorale Universitaria > Arcidiocesi di Torino > www.universitari.to.it > via XX settembre 83, Torino > tel. 011 5156239 > _______________________________________________ > nexa mailing list > nexa(a)server-nexa.polito.it > https://server-nexa.polito.it/cgi-bin/mailman/listinfo/nexa > -- *Avv. Carlo Blengino* *Via Duchessa Jolanda n. 19,* *10138 Torino (TO) - Italy* *tel. +39 011 4474035* Penalistiassociati.it

June 6, 2022

Diffamazione su Youtube, Google condannata in Australia

by don Luca Peyron

Decisione che farà scuola? dl https://www.milanofinanza.it/news/diffamazione-su-youtube-google-condannata… _________________________ don Luca Peyron Direttore Ufficio per la Pastorale Universitaria Arcidiocesi di Torino www.universitari.to.it via XX settembre 83, Torino tel. 011 5156239

June 6, 2022

Ugo Mattei "Il diritto di essere contro": 7 giugno presentazione del libro, aula magna CLE Università di Torino

by Maurizio Borghi

Gentili Nexiani, Segnalo un incontro di possibile interesse per i membri della lista: la presentazione del libro di Ugo Mattei "Il diritto di essere contro" (Piemme, 2022), aula magna del Campus Einaudi, martedì 7 giugno alle 18.00. Cordiali saluti Maurizio Borghi [image: Mattei_7 Giugno 2022.jpg]

June 6, 2022