full-disclosure - Block notification / bounce mails (as in DDOS)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <ELEOLHOJFMBPBFCJHOCIOEIADPAA.aditya.deshmukh@online.gateway.technolabs.net>
From: aditya.deshmukh at online.gateway.technolabs.net (Aditya, ALD [Aditya Lalit Deshmukh])
Subject: Block notification / bounce mails (as in DDOS)

> One think that crossed my mind later on was :
> - change my mx-records to one mailhost 'X' that's on my netblock 
> (so making 
> sure that possibly the backup-mailexchangers don't get annoyed)

here i control my mx and dns records so i can do this without doing anything to the isp so i use this solution

> - contact my isp and ask them to block all traffic directed to 
> 'X' to port 25 
> on their border routers

this will also work without any probs, infact the mx pointing to localhost might stop all your mail which even this soultion will do ;) how about something like postfix + spamassassin to stop accepting mail that is spam it coluld be eaisily done by one spamasssin rule 


-aditya


________________________________________________________________________
Delivered using the Free Personal Edition of Mailtraq (www.mailtraq.com)