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They haven't blocked them because the services can't block the spammer from forging their domain for malicious purposes. Email has historically had a broken authentication system. And by broken I mean the authentication is built on rather than built in the protocol. So take note they might not be sending these emails through the services at all and might ...


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I assume @user10012 is referring to the fact that google doesn't seem to take action against accounts sending malicious or unsolicited emails from "@gmail" accounts. So that users can benefit from an instantaneous messaging service gmail doesn't screen outgoing messages except if the user has generated suspicious activity, which would require a captcha be ...


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Botnets often consist of thousands of machines. The largest ones count even hundreds of thousands. When one machine gets blacklisted by a service provider for spamming, another machine from the botnet is used instead. Also, most members of botnets are machines at private internet connections which do not have static IP addresses. That makes them very hard ...


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Well, just by testing /slink?code=0 (a 404 error) and /slink?code=1 (LinkedIn Business Marketing Solutions), I'm guessing it's reserved for customers of LinkedIn Business Solutions. That said, I don't think it's that frequently used. I don't see much email traffic using it (I see more traffic using Hashcash, which is extraordinarily obscure.) This type of ...


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So I just stumbled upon this today and got a similar message: https://www.linkedin.com/slink?code=eiurEkp?61778=myname First I tried the first part: https://www.linkedin.com/slink?code=eiurEkp This ends here: http://281-inteligen.thiscontentedmotion.com/de/ihel/inteligen/ - a scammy article about somebody saying that someone said that this pill will just ...


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They use dict attacking schemes or brute force, to guess passwords of other email accounts on external submission servers or SMTPS servers (465/587). Sometimes, the bots do have a copy of a compromised Email/Password database, and as many have the same password to their Email account as to many forum/site accounts, they can easily find out which mail server ...


2

It looks like your link is dead as it now redirects to https://www.linkedin.com/static?key=incomplete_request_error I'm not sure if there is a builtin mechanism that would specifically support user redirects in linkedin, but if the spammer injected HTML, they may have used meta tags to accomplish this. e.g. <meta http-equiv="refresh" ...


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Not sure if helps, but I have used RBL lists for a long in my mail servers and they do a pretty decent job (they take care about 90% - 95% of the spam). It works much better than SpamAssassin (and without hassle). Still, I use SpamAssassin for the rest of the spam. Now, about your specific question: If I understand correctly, what you want is to block ...


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I will shoot in the dark as there is no way to know exactly what can be the reason without further details... Each time you forward those emails like : if you don't send this email to 20 accounts and the person who sent it to you in the next minute, you will be cursed..., spammers will receive a lot of information about you and your contacts (many people ...


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These are hard to get. Generally, you need to create and curate your own spam trap (hard!) or else get data from some existing spam trap. There are resources for this. See the following highly related questions: Brainstorm: How to quickly create a honeypot for mass spam? Publicly Available Spam Filter Training Set Spear phishing data set Databases ...



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