Re: [Exim] DNS blacklist lookup timeout causes temp reject

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著者: Craig R. Hodges
日付:  
To: Exim Users Mailing List
題目: Re: [Exim] DNS blacklist lookup timeout causes temp reject
As far as I can tell though, there are no 100% reliable DNS-RBLs. It's
more important to me to receive e-mail in a timely fashion than to block
"all" spam (which is impossible anyway). I was hoping to use RBLs to at
least save some bandwidth and time looking through all the junk. But
delays in receiving mail is too high of a price.

Thanks,
Craig

On Sat, 23 Mar 2002, Greg A. Woods wrote:

> Why oh why would you ever want to do that?
>
> If you've asked the mailer to check a blacklist, but the blacklist is
> temporarily unavailable, you don't want to allow any messages through
> until the blacklist becomes available again!
>
> I.e. if you don't want temporary rejects to happen when a DNS BL is
> temporarily unavailable then don't configure that DNS BL (or any other
> less than 100% reliable DNS BL)!
>
>