Multi (split) image spam

[Andrew MacLachlan]

Thanks Ed - That was my take as well.
To be fair, I can see both sides of the argument, however I consider greylisting to still be an essential tool in the fight against spam. As always there are many different implementations and each has it's pros and cons.
I have yet to see the perfect greylist implementation, but there has been some good work done by someone in Japan who modified postgrey so that it would only greylist dynamic addresses (determined by regex). Although this is nowhere near perfect it is certainly a step in the right direction (and should keep Res happy as well as his mailservers would be unlikely to be hit.) by adding some intelligence to the default postgrey implementation - which is a fairly blunt  -yet effective instrument.

No reply earlier to this to avoid a flame war which is never a good look!

-Andy

----- Original Message ----
From: Ed Bruce <edwardbruce at sbcglobal.net>
To: MailScanner discussion <mailscanner at lists.mailscanner.info>
Sent: Monday, 7 May, 2007 4:47:04 PM
Subject: Re: Multi (split) image spam

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Res wrote:
> On Sun, 6 May 2007, Andrew MacLachlan wrote:
> 
>>> and all it does it build up your own outgoing queues
>> Not sure how the logic on that one works...
> 
> errr logic? WTF? if the queue cant send it right away it stays in the
> queue so lamelisted_mail+current_submissions=building_up_queue
> like I said it might be fine if you run a small office 1K emails p/day,
> but not when you do millions p/day, however I have tuned sendmail queue
> running so that new stuff goes first, I'm not going to allow new stuff
> to be delayed in oversized queue runners because some lamers server wont
> accept it on first attempt.
> 
> 

Res I didn't understand what you meant at first. Well I may still not
understand, but I'm guessing you are saying that if my MTA is running
some sort of gray listing and your MTA attempts a connection it will
cause your queues to back up???

I took your original message to mean that if I run gray listing then my
queues would back up. That didn't seem to make much sense to me as I
wouldn't gray list myself.
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