On Tue, Jun 05, 2001 at 04:02:27PM +0100, Jason Taylor wrote:
>
> Spam checks are fine when they work, but if they screw up you can lose
> legitimate e-mail. I used the RBL a while back, our ISPs MX somehow got
> listed so all queued mail got bounced. - What made this worse was that
> there where two other MX that where not on the RBL, so only 1 in 3 e-mails
> which went to the backups was dumped, so the problem went undetected for a
> few days.

RBL listings do not come out of the blue: they are preceded by a
series of notifications. First the nominator, and then RBL itself,
probably tried to reach a human in vain.

Nobody was reading postmaster there, evidently, in violation of RFC822;
or the ISP received and read the notification but did not care,
thinking that somebody sent them just for fun.

furio ercolessi
Spin

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