----- Original Message ----- From: "Dave Beckstrom" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, July 29, 2005 16:32 Subject: RE: [Declude.JunkMail] Declude Woes
> That won't work. They come from thousands of different IP addresses. > > > > Our mail server is under continual bombardment all day long every day from > these dictionary attacks. I have blackice set up to automatically block the > IP address after 3 attempts at non-existing email accounts. The IP is > blocked for 1 hour and then the block goes away. > The reason we went with Postfix was twofold: 1. It can continue to receive email and hold it even if your mail server goes down. Big plus when I'm doing maintenenance! 2. If, at some point, we decide to migrate away from IMail, Postfix is, on its own, a damn good mail server. We're running to Postfix boxes; one a classic 233mhz Pentium MMX with 128mb of RAM and the other a 266mhz Pentium 2 with 384mb of RAM. The only reason for the Pentium II is redundancy, but I have both set to equal priority in their MX records, so I also get a bit of load balancing. The solution has been working flawlessly for a year. Linux/Postfix is just simply more capable, even on hardware only a fraction as powerful as your IMail Windows box, of handling large numbers of connections. -- A. Clausen -- A. Clausen --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
