> I'm currently working with a company that has 900 email servers: The > outer most relay must have NO user database. That is *critical*. > Ideally, it should also run off a bootable (ie non-writeable) CD. No > hard-drive.
I'm with Len on this one. While there are some reasons to hold off querying a userbase until later-stage relays--performance being the chief one--and some large providers don't 550 at the MX, security is just not a persuasive reason. Querying a userbase need not involve local storage at all, thus making the "bootable CD" a red herring. Nor need it involve the ability to browse the entire userbase. Nor need it involve touching the mailbox server. IMO, a properly architected mail architecure deals with harvesting as early as possible, unless one can demonstrate a threat to the performance/stability of MXs charged with performing other envelope anti-spam tasks or there are overwhelming budget limitations. -Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] ------------------------------------ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
