Re: [Exim] Blocking incessant relay testers with Exim 4

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Author: Matthew Byng-Maddick
Date:  
To: exim-users
Subject: Re: [Exim] Blocking incessant relay testers with Exim 4
On Mon, Jun 17, 2002 at 02:08:38PM -0400, Dave C. wrote:
> Perhaps that above would help cut this down. It could have a sanity
> delay of 5s or so, just to prevent such a host from repeatedly
> connecting too frequently.


2821 S4.5.3.2

Initial 220 Message: 5 minutes
MAIL Command: 5 minutes
RCPT Command: 5 minutes

You can go much better than 5s if they're being annoying. Because you're
not going to accept any mail from them, you don't have to worry about the
duplicate problem because they're never going to get that far. You just
give them a 5xx after 4 minutes to everything they send. :-)

MBM (Uses SAUCE to do that bit for him)

--
Matthew Byng-Maddick         <mbm@???>           http://colondot.net/