----- Original Message ----- From: "Suresh Ramasubramanian" <[EMAIL PROTECTED]> To: "Michel Renfer" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Tuesday, December 02, 2003 2:23 PM Subject: Re: SPAM from own customers
> > Virus filtering > > Rate limit (+ script to auto terminate user) and smtp auth on outbounds > SMTP AUTH is becoming risky if its not carefully setup and monitored. I can name one big time spammer who has warmed up to cracking weak passwords on e-mail systems that do SMTP AUTH. Means you'd have to filter your outbound mail servers port 25 from anyone not inside your network or a trusted source. Virus filtering is a must, but, alas, not all mail servers filter *outgoing* mail. Most filter only incoming mail. -------------------------- Brian Bruns The Summit Open Source Development Group Open Solutions For A Closed World / Anti-Spam Resources http://www.sosdg.org The AHBL - http://www.ahbl.org
