Re: how to detect spam attacks

2009-04-27 Thread deconya
Continuing with this thread I comment where I putted the options I can saw the server refuses external connections. Finally I ned to comment permit_mynetworks option and I think all is going right. In the server the options are: smtpd_recipient_restrictions = check_recipient_access hash:/

Re: how to detect spam attacks

2009-04-27 Thread deconya
Hi list The first thing to do will be a blacklist created for me. Im looking to make it and is putting the line: check_client_access hash:/etc/postfix/blacklist but I have doubts. Where I need to put this? in smtp_recipient_restrictions or in smtpd_client_restrictions? The content inside the arc

Re: how to detect spam attacks

2009-04-26 Thread Scott Haneda
I'm not sure if you can on your hardware, but some of my most effective countermeasures are ehlo/helo checking for hostname does not contain a ".". This can cause a very small amount of false positives so please do check your logs first. Second is greylisting. Third is checking if the ehlo

Re: how to detect spam attacks

2009-04-26 Thread Wietse Venema
deconya: > Hi list > > Im with the next problem: I have and old server and Im in process to migrate > to a better machine, but actually Im having spam attacks in the server than > saturate it. For the age of the server and because in two weeks is replaced > I can't install any program like spamit

Re: how to detect spam attacks

2009-04-26 Thread Terry Carmen
> Hi list > > Im with the next problem: I have and old server and Im in process to migrate to a better machine, but actually Im having spam attacks in the server than saturate it. For the age of the server and because in two weeks is replaced I can't install any program like spamity or similar t

how to detect spam attacks

2009-04-26 Thread deconya
Hi list Im with the next problem: I have and old server and Im in process to migrate to a better machine, but actually Im having spam attacks in the server than saturate it. For the age of the server and because in two weeks is replaced I can't install any program like spamity or similar to help