I run a free email service, and I've had similar problems.
Some questions would be: How is he getting access to those dial-up accounts? Where is he dialing in from? Is he actually sending via the dial-up, or from a remote location using the auth of the dial-up user? My problem was the free-signup. I ended up forcing users to visit another page before hitting the signup form page, and then requiring an existing email account to receive their password. The second really seems to have done the trick. Also, blocking sending IP's/subnets for a while discourages them as well. If you can block calls based on caller ID (running a PBX? What kind? I've blocked calls on a Fujitsu 9600 - but it's been a while ;) - do that for a while.. Rick On Wed, 2004-05-05 at 12:59, Sheldon Jones - Admin wrote: > You may try running some sort of throttling tool. I'm running > qmail-spamthrottle on our network. http://spamthrottle.qmail.ca/ > This is not a fix to the problem but it will slow the rate at which > messages are sent to your server. This will usually send the spammer > searching for a new ISP. > > --Sheldon > > On Wed, May 05, 2004 at 10:08:30AM -0400, Nelson D. Guerrero wrote: > > Hello World; > > > > The last few days my server has been getting hammered by some guy > > stealing dialup accounts from my network. So far I've suspended 15 > > accounts, but the person keeps comming back. > > > > He/She is sending mails to aol.com accounts making my server's queue go > > up to 15K on busy moments. I want to know if there is a way I can block > > all outgoing spam send through my server. Actually I don't want to block > > it, I want to /dev/null it the instant it reaches my server. > > Any ideas on a way I can do this. I'm currently running q-s with clamd > > with no spam checking. > > > > -- > > nelsong; (greetings from the heart of the sun.) > > \____ echo mailto: !#^."<*>"|tr "<*> mailto:";; [EMAIL PROTECTED] > > > > > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by: Oracle 10g > > Get certified on the hottest thing ever to hit the market... Oracle 10g. > > Take an Oracle 10g class now, and we'll give you the exam FREE. > > http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click > > _______________________________________________ > > Qmail-scanner-general mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general -- -- Rick Romero IT Manager Valeo, Inc. ph: 262.695.4841 Sussex, WI. fax: 262.695.4850 [EMAIL PROTECTED] ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Qmail-scanner-general mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general
