Can sasl/sendmail Report IP Of Failed Access?

Chris Hill chris at
Tue Jun 4 22:18:21 UTC 2013

On Tue, 4 Jun 2013, Doug Hardie wrote:

> On 4 June 2013, at 08:47, Tim Daneliuk <tundra at> 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.
>> --
> 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.

That sounds incredibly useful. Can you post it somewhere?

Chris Hill               chris at
**                     [ Busy Expunging </> ]

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