Heavy increase in spam influx this week?

[Mike Kercher]

Glad to help! :)
 
 


________________________________

	From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Vlad
Mazek
	Sent: Sunday, September 02, 2007 9:39 PM
	To: MailScanner discussion
	Subject: Re: Heavy increase in spam influx this week?
	
	
	Aaah. So reading TFM helps :)
	
	Thanks Mike, that did it. 
	
	-Vlad
	
	
	On 9/2/07, Mike Kercher <mike at vesol.com > wrote: 

		http://technoids.org/dossed.html
<http://technoids.org/dossed.html> 
		
		
		
		________________________________
		
		        From: mailscanner-bounces at lists.mailscanner.info
		[mailto: mailscanner-bounces at lists.mailscanner.info
<mailto:mailscanner-bounces at lists.mailscanner.info> ] On Behalf Of Vlad
		Mazek
		        Sent: Sunday, September 02, 2007 5:06 PM
		        To: MailScanner discussion
		        Subject: Re: Heavy increase in spam influx this
week? 
		
		
		        How do you manage concurrent connections in
Sendmail? I know
		about confCONNECTION_RATE_THROTTLE and  WINDOW_SIZE but
is there
		anything that will limit the number of concurrent
connections from a
		single IP address?
		
		        -Vlad
		
		
		        On 8/31/07, Gareth
<list-mailscanner at linguaphone.com> wrote:
		
		                cat /var/log/maillog | grep -E
"(connection 
		count|concurrency)"
		                Looking through my logs there have been
the odd one or
		two IP addresses in
		                the past with about 10 active
connections at once but
		starting from the 27th 
		                I started to see connection of over 20
concurrent.
		
		                I have dropped the concurrent
connections per IP from 50
		down to 5. We only
		                have a 1Mbps internet connection so if
any genuine 
		person tries to send us
		                more than that at the same time I would
prefer to limit
		it to conserve
		                bandwidth anyway.
		
		                I think I'll do what you did and reduce
the 
		smptd_timeout aswell.
		
		                > -----Original Message-----
		                > From:
mailscanner-bounces at lists.mailscanner.info
		<mailto:mailscanner-bounces at lists.mailscanner.info>
		                >
[mailto:mailscanner-bounces at lists.mailscanner.info
<mailto:mailscanner-bounces at lists.mailscanner.info> ]On
		Behalf Of Leland
		                > J. Steinke
		                > Sent: 31 August 2007 18:55
		                > To: MailScanner discussion
		                > Subject: Re: Heavy increase in spam
influx this week? 
		                >
		                >
		                > Kai Schaetzl wrote:
		                >
		                > > My Postfix machines still suffer
from the backlog of
		bots, as I
		                > haven't checked yet 
		                > > if Postfix provides similar time-out
options. Anyone
		knows?
		                >
		                > smtpd_timeout?
		                >
		                > I started reducing this from 300s to
120s several 
		moments ago, after
		                > catching up on my email after a
particularly long
		meeting discussing,
		                > among other things, requirements for
new spam/virus
		filtering servers...
		                >
		                >
		                > Leland
		                > --
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		<mailto:mailscanner at lists.mailscanner.info>
		                >
	
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		        -Vlad
		
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	-- 
	-Vlad