Re: [Declude.JunkMail] legit newsletter services

[Matt]

Andrew, Topica also has a bulk-mail service and they definitely cater to spammers.  That service is very much like Uptilt or Midnshare Design.  I have found a few legitimate newsletters coming from it, but it's almost all garbage and we do block the bulk-mail from them on site, and whitelist the rare exception. If yo note Topica's new site, they are leaving the discussion groups behind and concentrating on bulk-mail services.  The reason why you might think they have gotten better is because they were probably damaged by SBL listings and the like, and spamming members chose other cleaner services for their lists.  Doing confirmed opt-in also helped to clean up some of the worst of the abuse, but still, free discussion groups aren't their thing any more. As far as Jaguar Technologies goes, I'm not totally sure why they are associated with this IP space.  ARIN shows the space in that block as coming from Yipes which is of course a favorite of spammers.  I believe that it is possible that Senderbase is showing the connection to Jaguar Technologies in error since Topica has their own assignments from Yipes, and so does the spam house that came up in Nick's link.  I have grown to be suspicious of the data that Senderbase displays in the upper right hand side of the data.  In this case, it doesn't come from public whois data. Matt Colbeck, Andrew wrote: That would be this hosting provider: http://www.jaguarpc.com Topica certainly uses this provider provider for some of their mailings, and Jaguar is also hosting others. I don't know if that makes them good or evil. My own opinion about Topica is that in the 3 years the've been sending mail to my domains, they have gotten incrementally better. Some of their lists are derived from suspect sources, but I never seen them do "broadcast spam" to unrelated addressees. It's the subscribers to daily Astrology, Diet, Jokes, Deals and whatnot that get on the spontaneous newsletter treadmill. This is what I call "sel-inflicted spam". Unsubscribing from Topica newsletters does seem to work, but others may describe it as "listwashing". As a private company and not an ISP, I can take no great effort in allowing or blocking them, as Topica rarely has business related lists of interest to us. Andrew 8) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of NIck Hayer Sent: Wednesday, June 01, 2005 1:45 PM To: Declude.JunkMail@declude.com Subject: Re: [Declude.JunkMail] legit newsletter services Thanks Matt! What about Jaguar Technologies? http://www.senderbase.org/search?searchBy=organization&searchString=Jagu ar%20Technologies%20LLC Are they part of Topica? -Nick Matt wrote: Nick, Any list service of moderate or large size will leak spam, some more, some less, but it's fairly bad wherever you go because the spammers tend to have the larger lists, but probably only represent the minority of their customers. Roving.com (ConstantContact), bCentral, some of Topica, etc. all experience these issues. There is no magic bullet to solving this issue. You either block some legitimate E-mail or you allow through some spam. Since my first priority is to deliver the good E-mail, I choose to leak a bit of the spam. Content based filters are best for this type of thing. Sniffer will tag some payload domains that are separate from the provider (but you might have to remove some of the provider rules in your rule base if they false positive), and tools that do SURBL type lookups can be useful in separating the wheat from the chaff, though they also tend to false positive on the provider's domains on occasion. Using IP-based RBL's to differentiate between the good and the bad here is a losing battle, and the results are inconsistent because of things like SpamCop. This was a huge issue for me along with legitimate bulk-mail because there is hardly a resource out there that doesn't have false positive issues on this content. My solution was to identify all such companies by way of IP space and reverse DNS entries so that I could disable the IP4R tests (by giving credit back), and then just simply relying on content/payload filtering to take care of the spam that might come from them. This was a ton of work and there are new additions to my lists all the time, but it has paid off for me. Matt NIck Hayer wrote: Does anyone have a list of newsletter [revdns?] senders that are trusting to not send spam that they would be willing to share? I send quite a bit of time trying to figure out if some emails are actuall valid - for example stuff from roving.com, etc. Thanks! -Nick --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". 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