Thank you Aaron. My supervisor asked me to find a configuration change to postfix. He wants to avoid adding any new agents/programs. It seems the person I replaced had some bad times when trying to add other programs to the mail gateway functionality.
---------- Forwarded message ---------- From: Aaron Wolfe <[EMAIL PROTECTED]> Date: Mon, Oct 6, 2008 at 12:55 PM Subject: Re: outgoing SPAM To: postfix-users@postfix.org On Mon, Oct 6, 2008 at 2:33 PM, Robert Lopez <[EMAIL PROTECTED]> wrote: > In the past months there have been instances where pfishing was used to get > account credentials and use the victim's account to send massive quantities > of SPAM. > > Is there a way to configure postfix to detect such an event and/or to stop > such an event from reoccurring? > Is there a way to limit the number of email a person can sent in a short > period of time? > Is there a way to block sending an email if a maximum number of recipients > is exceeded? You can do some limits with policy filters. One to limit the number of mails sent over time is: http://www.opennix.com/postfixresources/policy/ratelimit You could easily modify this to limit based on other criteria, some hints are in the docs. I have also read that policyd can do this but haven't used it myself. -Aaron > > -- > Robert Lopez > Unix Systems Administrator > Central New Mexico Community College (CNM) > 525 Buena Vista SE > Albuquerque, New Mexico 87106 > -- Robert Lopez Unix Systems Administrator Central New Mexico Community College (CNM) 525 Buena Vista SE Albuquerque, New Mexico 87106
