[exim] Re: Tackling Bot Blasts

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Author: Pete Long
Date:  
To: Slavko
CC: exim-users
Subject: [exim] Re: Tackling Bot Blasts
On 2023-05-29 16:24:36, Slavko via Exim-users wrote:
> Dňa 29. mája 2023 9:01:56 UTC používateľ Pete Long via Exim-users <exim-users@???> napísal:
>
> >drop
> > message = No host name found.
> > condition = ${if eq{$host_lookup_failed} {1} {1}{0}}
>
> Beware, host lookup is done by forward confirmation,
> in other words, PTR followed by A/AAAA lookup. That
> variable has 1 if any from them fails, not only the PTR
> one... IMO too strict for real world...
>
> Anyway, that must be enough:
>
>     condition = $host_lookup_failed


Thanks Slavko for the information about the condition. I tend to agree, too
idealistic but man did I have enough of that abuse.

I should've remembered: never let the bad 'guys' dictate how you want to live
(or run a mail server). :)


Pete.

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