funsec mailing list archives
Re: Blacklisted by a mouse?
From: Steven Champeon <schampeo () hesketh com>
Date: Tue, 10 Jan 2006 11:57:00 -0500
on Tue, Jan 10, 2006 at 09:18:58AM -0500, jonathan.curtis () bell ca wrote:
Diagnostic code: smtp;550 Not interested in mail from shawcable.net pool hosts.Unfortunately for a number of reasons, dynamic IP space has a poor reputation. In Shaw's case, they don't block port 25 which allows you to directly connect to Mouse's mail server.
Yeah, and to mine. Over and over and over. Just in the past 24 hours, just from one botnet, just sent to one dormant address from a piece of ratware that HELO's as a random string of digits, and so it wouldn't get delivered /anyway/: S01060050ba4024b6.vf.shawcable.net [70.68.167.197] S01060007e9754e87.cg.shawcable.net [68.144.204.2] S01060050bf782700.gv.shawcable.net [24.68.149.182] S01060007e9754e87.cg.shawcable.net [68.144.204.2] S01060004ac6e8089.du.shawcable.net [70.67.215.115] S01060007e9754e87.cg.shawcable.net [68.144.204.2] S010600c0a88c3727.vf.shawcable.net [70.69.64.117] S0106000d611c0eaf.rd.shawcable.net [70.65.101.90] S0106000d611c0eaf.rd.shawcable.net [70.65.101.90] That's out of 691 delivery attempts, making shawcable.net responsible for 1.3% of all botnet traffic received here yesterday by that mailbox. But if you can distinguish yourself from the sewer-like neighborhood you're in, with static IP and non-generic rDNS, I'd be happy to receive mail from you. -- hesketh.com/inc. v: +1(919)834-2552 f: +1(919)834-2554 w: http://hesketh.com antispam news, solutions for sendmail, exim, postfix: http://enemieslist.com/ _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- Blacklisted by a mouse? Rob, grandpa of Ryan, Trevor, Devon & Hannah (Jan 09)
- <Possible follow-ups>
- RE: Blacklisted by a mouse? jonathan.curtis (Jan 10)
- Re: Blacklisted by a mouse? Steven Champeon (Jan 10)
- Re: Blacklisted by a mouse? der Mouse (Jan 10)