On Wed, Dec 30, 2015 at 10:45 AM, theresa mic-snare
<[email protected]> wrote:
> Hi guys,
>
> sorry it's me again. Recently I've found myself flooded with one specific
> type of request. It seems automated because it happens hourly. Today I've
> had 16 of those so far:
> postfix/smtpd[30215]: warning: 104.167.104.13: hostname Tor-Private.ru
> verification failed: Name or service not known
>
> it started a few days ago....
>
> It's classified as a Level 2 alert as "Unknown problem somewhere in the
> system."
> and it origins from the postfix log /var/log/maillog
>
> here's my two questions:
>
> is there anything I could do to make it stop? I have already created an
> iptables rule but it seems to go on.... (DROP       all  --  Tor-Private.ru
> anywhere )
> I would like to create a rule for it in the postfix_rules, so that it
> doesn't say "Unknown problem somewhere in the system." ...
>
> what would be an ideal fit? "attempted mail relay abuse" or something like
> that?
>

I'd probably make it "address verification failed" or something like that.

> what do you think?
>
>
> best,
>
> theresa
>
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