[leaf-user] Need to block IP's from spamers...

2008-01-09 Thread Michelle Konzack
Hello, I am running a 3.5 MBit SDSL from and have a @home Mailserver which is currently (since 2007-12-17) hit by daily several 100.000 spams (2-5 times 30-120 minutes) from over 2000 different IP's. My mailserver is rejecing thios shit nearly perfect but the server has a

Re: [leaf-user] Need to block IP's from spamers...

2008-01-09 Thread Gordon Bos
You might want to look at another project: ASSP http://assp.sourceforge.net/ This is a spam filter that blocks at the SMTP level, essentially catching the spammer in the act. Since it immediately drops the connection it also prevents the spammer from sending several emails at once. It even incl

Re: [leaf-user] Need to block IP's from spamers...

2008-01-09 Thread Bob Gregory
> -Original Message- > From: [EMAIL PROTECTED] [mailto:leaf-user- > [EMAIL PROTECTED] On Behalf Of Gordon Bos > Sent: Wednesday, January 09, 2008 10:17 AM > To: Michelle Konzack > Cc: leaf-user > Subject: Re: [leaf-user] Need to block IP's from spamers... >

Re: [leaf-user] Need to block IP's from spamers...

2008-01-09 Thread Charles Steinkuehler
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michelle Konzack wrote: | Hello, | | I am running a 3.5 MBit SDSL from and have a | @home Mailserver which is currently (since 2007-12-17) hit by daily | several 100.000 spams (2-5 times 30-120 minutes) from over 2000 | differen

Re: [leaf-user] Need to block IP's from spamers...

2008-01-10 Thread Gordon Bos
Trying to do anything like this with iptables is not a really good idea. I've used a huge list of IP ranges before on my firewall, only to find that to keep it simple I had to include more than I really wanted and it still took about 5 minutes to load all the rules. Since a blacklist is somet

Re: [leaf-user] Need to block IP's from spamers...

2008-01-11 Thread Michelle Konzack
Hello Gordon, How do you configure this, if currently the mein mailserver is behind the LEAF-Router ISP LEAF @home mailserver NERIM > Router > courier-mta ^ | Here a SMTP-Proxy which catch all connections on Port 25 and

Re: [leaf-user] Need to block IP's from spamers...

2008-01-11 Thread Gordon Bos
Michelle, To run ASSP (which is a Perl based SMTP proxy that includes a bayesian filter) you need to have three ports available: one for proxying outgoing email, one for proxying incoming email and one for the actual mailserver. Depending on email client and email server software you may be fo

Re: [leaf-user] Need to block IP's from spamers...

2008-01-11 Thread Charles Steinkuehler
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michelle Konzack wrote: | Maybe I can catch (on the LEAF-Router) the incoming connections to Port | 25 and redirect them to a SMTP-Proxy which do dedicated RBL-Checks and | then forward the message to my courier-mta. | | Problem: I do not know HOW to

Re: [leaf-user] Need to block IP's from spamers...

2008-01-11 Thread Michelle Konzack
Hello Charles, Am 2008-01-09 10:36:44, schrieb Charles Steinkuehler: > You probably don't want to load your router/firewall with reverse DNS > lookups on every packet. You can configure most modern mail clients to Yes I know, but it is a AsusTek A7V600-X with a Sempron 2200+ and 256 MB of memory