nanog mailing list archives
Re: IP-Echelon Compliance
From: Stephen Satchell <list () satchell net>
Date: Wed, 14 Oct 2015 04:22:01 -0700
On 10/14/2015 03:37 AM, Rich Kulawiec wrote:
On Wed, Oct 14, 2015 at 12:12:29PM +0200, Randy Bush wrote:jeezus folk! http://www.procmail.org/I wouldn't necessarily recommend that approach. There is no obligation for victims of spammers to continue providing Internet services to them, including SMTP services. A much better move would be to identify the network block emitting this abuse and block/drop all packets from it at the perimeter of the network or in the firewall(s). After all, spammers frequently engage in other forms of abuse, so it would probably be best to simply remove them from your view of the Internet. ---rsk
+1 -- I've taken the approach in my edge network to block spammers and SSH abusers completely, on the theory that people will have multiple bad habits. I collect between 1000 and 2000 spam messages during each cycle, then add the worst offenders to my netblocks. I don't recommend this approach for services that have a number of different customers; for enterprise networks, though, judicious use of ACLs can relieve a lot of headaches and clogging traffic.
Running multiple mail servers, one for incoming sales and one for general use, lets you tailor the blocks so that relatively few people have to deal with the sludge.
Current thread:
- Re: IP-Echelon Compliance, (continued)
- Re: IP-Echelon Compliance Mike Hammett (Oct 13)
- Re: IP-Echelon Compliance Baldur Norddahl (Oct 13)
- Re: IP-Echelon Compliance Rich Kulawiec (Oct 13)
- Re: IP-Echelon Compliance Fred Hollis (Oct 13)
- Re: IP-Echelon Compliance seth (Oct 13)
- Re: IP-Echelon Compliance Bob Evans (Oct 13)
- Re: IP-Echelon Compliance Peter Kristolaitis (Oct 13)
- Re: IP-Echelon Compliance Jason Hellenthal (Oct 13)
- Re: IP-Echelon Compliance Randy Bush (Oct 14)
- Re: IP-Echelon Compliance Rich Kulawiec (Oct 14)
- Re: IP-Echelon Compliance Stephen Satchell (Oct 14)
- Re: IP-Echelon Compliance Randy Bush (Oct 14)
- Re: IP-Echelon Compliance Valdis . Kletnieks (Oct 14)
- Re: IP-Echelon Compliance Christopher Morrow (Oct 14)
- Re: IP-Echelon Compliance Matthias Leisi (Oct 14)
- Re: IP-Echelon Compliance George Herbert (Oct 14)
- Re: IP-Echelon Compliance Mike Hammett (Oct 14)
- Re: IP-Echelon Compliance Rich Kulawiec (Oct 15)
- Re: IP-Echelon Compliance Andrew Kirch (Oct 14)
- Re: IP-Echelon Compliance Christopher Morrow (Oct 14)
- Re: IP-Echelon Compliance Eric Kuhnke (Oct 13)