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Date:      Tue, 4 Jun 2013 14:51:08 -0700
From:      Doug Hardie <>
Cc:        FreeBSD Mailing List <>
Subject:   Re: Can sasl/sendmail Report IP Of Failed Access?
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On 4 June 2013, at 08:47, Tim Daneliuk <> wrote:

> I am seeing login dictionary attacks on a FreeBSD mail server being
> reported.  Is there a way to determine the IPs that are doing this
> so they can be blocked at the firewall?   auth.log only
> notes the attempted user name, not the IP of origin.
> --=20

I wrote some code to find the appropriate maillog entries which do =
include the IP addresses.  It automagically adds the IP addresses to the =
pf blackhole table if certain criteria is met.  The criteria is =
changeable.  If you would like a copy, let me know. =20=

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