Ahem, a list regular reminded me about host_reject.
I should have RTFM'd first. My apologies.
Cheers,
Ryan
Ryan Tracey wrote:
> Hi
>
> I have a list of confirmed spammer IP addresses gathered by various exim
> filters (spamtrap, etc) that I am using to block further delivery
> attempts with. I cron a process that concatenates the inidividual
> lists, then sorts and makes unique the resulting list, after which I add
> ": block" after each entry (e.g. 123.123.123.123: block) and then use
> exim_dbbuild to create a dbm copy of that file.
>
> I have the following entry in the system filter to block delivery of any
> email from any of those IPs:
>
> if
> ("${lookup{${lc:$sender_host_address}}dbm{/etc/exim/spamblock.db}{$value}}"
>
> is "block")
> then
> save /var/log/exim/spamcatcher/result.spool 0644
> logfile /var/log/exim/spamcatcher/result.log 0644
> logwrite "[$tod_log] ${lc:$sender_address}
> ($sender_host_name[$sender_host_address]) -> recipients=$recipients
> subject=$header_subject"
> seen
> finish
>
> endif
>
> My question is whether there better way of making sure that the
> deliveries from those IPs have the least impact on my mail server. Is
> there a way I could send a 500 error at SMTP time rather than accepting
> the whole email and then discarding it.
>
> I am have setup an Exim 4 server with exiscan, spamassassin and clamav
> that I plan to use in the not-too-distant-future. However, I would still
> like to ensure that the existing 3.35 config is as efficient as it
> could be.
>
> Thanks and regards,
> Ryan
>
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>
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>
