OT - GreetPause question
Steve Campbell
campbell at cnpapers.com
Tue Oct 28 13:46:27 GMT 2008
Jeff A. Earickson wrote:
> On Tue, 28 Oct 2008, Steve Campbell wrote:
>
>> Date: Tue, 28 Oct 2008 09:29:20 -0400
>> From: Steve Campbell <campbell at cnpapers.com>
>> Reply-To: MailScanner discussion <mailscanner at lists.mailscanner.info>
>> To: mailscanner at lists.mailscanner.info
>> Subject: OT - GreetPause question
>>
>> Done a little googling, but didn't see a specific answer. Don't
>> belong to the sendmail mail list, but probably should join - I belong
>> to too many already.
>>
>> It's OT so I'll listen to whatever comes my way.
>>
>> I use GreetPause. I have a default time set at 5000 in my
>> sendmail.mc(cf) for 5 seconds. I have my own servers set at 0 so that
>> there is no delay invoked. I have found where I can put different
>> delays other than zero for certain IPs to override the default in the
>> sendmail.cf, but I don't see it working (or maybe the spammers are
>> really following the rules and wait). The override feature of
>> GreetPause may only be valid in 8.14 sendmail for values other than 0.
>>
>> So that is my question - is it valid to put something like
>> "GreetPause:xx.yy.zz 20000" in my access file, remake the
>> access.db in sendmail 8.13? It doesn't give a warning when I remake
>> it, but I see no pre-greeting messages for the inserted values in my
>> logs.
>>
>
> Steve,
>
> Yes, you can do something like:
>
> GreetPause:206.46.170<tab>5000
>
> in your access file, remake access.db, and have it work. In the
> example above,
> this is Verizon. They won't tolerate delays beyond 5 seconds, which
> is shorter
> than my 7 or 8 sec delay, so I had to make adjustments for them.
> FWIW, greetpause
> doesn't do much anymore. Spammers with spambots will just wait you out.
>
> Jeff Earickson
> Colby College
Jeff,
Thanks very much. I typically REJECT a spammer, but when a block of IPs
start showing up, I GreetPause them with a higher number. Once I know
the entire Class C is bad, I REJECT that and remove the GreetPause along
with the individual IP REJECTions. I'm not sure I was doing any good
with the GreetPauses, but you seem to be correct when you say they wait
me out, which would explain it.
Steve
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