Incidents
Massive SPAM Increase Oct 06 2006 11:02PM
Alex (incidents alex gotdns org) (2 replies)
Re: Massive SPAM Increase Oct 09 2006 05:01AM
jim barchuk (jb jbarchuk com) (1 replies)
Re: Massive SPAM Increase Oct 09 2006 11:00PM
Graeme Fowler (G E Fowler lboro ac uk)
Re: Massive SPAM Increase Oct 08 2006 09:30PM
Kurt Seifried (bt seifried org) (1 replies)
Re: Massive SPAM Increase {-2.6} Oct 09 2006 01:15AM
Vini Engel (vini fugspbr org) (1 replies)
Re: Massive SPAM Increase {-2.6} Oct 09 2006 04:06AM
Kurt Seifried (bt seifried org) (1 replies)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 05:06AM
Vini Engel (vini fugspbr org) (1 replies)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 06:33PM
Paul Schmehl (pauls utdallas edu) (3 replies)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 14 2006 02:46AM
Valdis Kletnieks vt edu (1 replies)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 14 2006 03:52AM
Paul Schmehl (pauls utdallas edu) (3 replies)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 17 2006 01:20AM
Jamie Riden (jamesr europe com)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 16 2006 05:04PM
benfell raven cybernude org (2 replies)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 16 2006 05:38PM
Paul Schmehl (pauls utdallas edu) (1 replies)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 17 2006 01:44AM
gabriel rosenkoetter (gr eclipsed net)
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 16 2006 05:29PM
Valdis Kletnieks vt edu
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 14 2006 05:44AM
Valdis Kletnieks vt edu (1 replies)
Re: ***SPAM*** Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 14 2006 05:17PM
Paul Schmehl (pauls utdallas edu) (2 replies)
Re: ***SPAM*** Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} Oct 17 2006 01:59AM
Dude VanWinkle (dudevanwinkle gmail com)
Re: Massive SPAM Increase Oct 16 2006 03:57PM
gabriel rosenkoetter (gr eclipsed net) (1 replies)
Re: Massive SPAM Increase Oct 17 2006 01:33AM
Jamie Riden (jamesr europe com)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 11:09PM
Graeme Fowler (G E Fowler lboro ac uk) (1 replies)
Re: Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 11:43PM
Luke Burton (luke burton echidna id au) (1 replies)
Re: Massive SPAM Increase Oct 10 2006 07:44PM
Tillmann Werner (tillmann werner gmx de)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 09:29PM
Tim (tim-forensics sentinelchicken org) (2 replies)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 10:33PM
Paul Schmehl (pauls utdallas edu) (2 replies)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 11:48PM
Tim (tim-forensics sentinelchicken org)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 10:47PM
Nathaniel Hall (nathaniel d hall gmail com)
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 10:28PM
Brent Kearney (brent kearneys ca) (1 replies)

On Oct 9, 2006, at 15:29, Tim wrote:

>> Its purpose is to reject *all* mail from bogus MTAs - dialups,
>> misconifigured servers, MTAs that aren't registered in the
>> domains' DNS as
>> a "legal" MX, MTAs that don't reverse properly, etc., etc. If the
>> email is
>> forged in any way, it will never make it to DATA.
>
> That's great, except it makes the internet more expensive for the
> little
> guy. If you're trying to run a non-spamming personal mailserver
> off of
> a consumer DSL or cable line, you can get screwed by others' policies
> like this because you may not have control over your PTR records or
> how
> your ISP lists you as a non-MTA with other organizations.

Some university campuses maintain strict control over their reverse
DNS entries, and so departments or on-campus organizations, research
institutes, etc. that run their own mail servers will have non-
matching forward and reverse DNS entries on their MX hosts. Blocking
rules like this make life difficult for them as well.

Cases such as these raise the question, if the blocked mail never
gets into your network, how would you know about the rate of false-
positives?

Brent

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[ reply ]
Re: Massive SPAM Increase {-2.6} {-2.6} Oct 09 2006 10:38PM
Paul Schmehl (pauls utdallas edu)


 

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