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Date:      Tue, 04 Jun 2013 14:13:32 -0500
From:      "Mark Felder" <>
Subject:   Re: Can sasl/sendmail Report IP Of Failed Access?
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On Tue, 04 Jun 2013 10:47:16 -0500, Tim Daneliuk <>  

> 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 don't use sendmail, but aren't the login attempts at least logged in  
maillog as well? If so, you could use fail2ban to ban them. We do this  
with postfix/exim/dovecot/etc.

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