North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Stealth Blocking
> Remember that the spammer is handing the "open" relay one piece of > mail with zillions of RCPT TO:s - rate limiting the outbound just > means that the zillions of recipients sit in *your* queue that much > longer. I will add "further punishes/diminishes the harm of open relays" to the "pro" column. ;) > I have heard from multiple sources that the spammers are well clued > enough to utilize multiple relays in parallel - if you rate limit to > 1/N of bandwidth, they just use N relays at the same time. If the rate limit is applied to *:25, then the *MORE* relays the spammer uses, the longer it takes for him to do it. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
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