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I imagine the reason that it's done is because rejecting it gives spammers more information that could possibly be used to get around the rejection. It's much h
by travisp 14y ago
I imagine the reason that it's done is because rejecting it gives spammers more information that could possibly be used to get around the rejection. It's much harder if they aren't sure whether or not the message was received.
Whether or not that's appropriate is another thing, but that is probably the rationale behind it.
- haroldp 14y agoMore likely the rationale is that it's easier to filter stuff asynchronously after it is sitting in queue, and there's no longer a TCP connection hanging off it, waiting for a response. In other words, it's cheaper.