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On 11/23/2013 8:55 AM, Eric Shubert
wrote:
Having said that, I've come to the conclusion that graylisting isn't worth it to me. I disabled graylisting several months ago, and haven't really noticed any less effectiveness. Measuring the effectiveness of graylisting properly is very difficult, and it's a pain for users (myself included) at times. With all of the other filters spamdyke provides, I don't think the cost of graylisting is worth the benefit. Of course, YMMV. Curious you bring that up. In perusing the logs, it (very subjectively) looks like r_dns lookups are blocking 95% of the spam, RBL is getting about 4% and graylisting is only being invoked about 1% of the time. But what is the "cost of graylisting"? Graylisting delays a legit email by X amount of minutes. Is that the pain of which you are talking? |
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