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LINUX-L  2007

LINUX-L 2007

Subject:

Re: Your recommendation please: a big volume mail solution

From:

Jon Lewis <[log in to unmask]>

Reply-To:

Platform Independent Linux List! <[log in to unmask]>

Date:

Wed, 7 Nov 2007 13:41:55 -0500

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (67 lines)

On Wed, 7 Nov 2007, Bob Johnson wrote:

> On Tuesday 06 November 2007 20:21, Jon Lewis wrote:
>> The best way to avoid looking like a spammer is to not spam.  Anything
>
> I take it, then, that Atlantic.net is not trying to avoid looking like a
> spammer? Isn't the ISP that hosts a spammer tainted by the spam as well?

Every ISP will have customers spam on occasion.  Believe it or not, I'm 
dealing with another customer right now who is providing VPN service to 
Nigeria.  Guess what the Nigerians are doing with it?  I haven't figured 
out yet if the customer is evil or just amazingly gullible/naive.

> Everyone in my office gets spam from the Hippodrome. None of us have ever
> signed up for it. None of us want it. It originates from an Atlantic.net
> address. My complaints to the Hippodrome _and_ to Atlantic.net were
> completely ignored. I finally (supposedly) got off the list by telephoning
> the Hipp, and I blocked them at our server for the rest of our office (so for
> all I know, I'm still on the list).

My responsibilities at Atlantic.net don't normally include reading abuse@, 
but I do look into issues when they're brought directly to my attention.

In this case, I see we have gotten a few spamcop complaints about the 
Hippodrome's mailings...but on the order of 2-3 per month, and none since 
the first week of October.  Still, I've sent an email to the contact 
address we have on file for their T1, asking to be put in touch with 
whoever's responsible for their direct mailings, so I can talk to them 
about what's acceptable, what's not, and mention that they're probably 
violating CAN-SPAM.

> By the way, the address they were spamming me at is one that is only published
> on one web page. I never provide it to anyone, so they clearly obtained it by
> harvesting addresses from that (UF department) web site, although when I
> called them they denied that they do this.

If you can send me some samples I can share with them, that would be 
helpful.  X-out the recipient address if you like.

> 2007-11-04 14:38:30 -0500 H=(server2.Hippodrome) [209.208.9.122]
> F=<[log in to unmask]> rejected RCPT <[log in to unmask]>: Previous (cached)
> callout verification failure
>
> (these are all getting 550 responses from us - yet they keep re-trying)

At what phase of the SMTP dialog are you giving them a 550?  I suspect 
their MTA is some buggy app on Windows and isn't understanding the 550 for 
some reason.  I've seen that sort of thing before (with Atlantic.net on 
the receiving end) and the easiest solution is to simply accept the 
message so they'll stop retrying.  In our case, they were sending to an 
address that didn't exist, and retrying many times/minute.

> And like all good spammers, they use a fake server name:
> 2007-11-02 15:58:30 -0400 no IP address found for host
> hippodrome-gsvl-gw-1.atlantic.net (during SMTP connection from
> (server2.Hippodrome) [209.208.9.122])

That's more a sign of lack of clue than spamming.  Lots of non-spamming 
mail servers issue bogus helo's.  It's probably causing them added 
difficulty in getting mail delivered...which if it's spam would be a good 
thing.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

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