I got it working, sort of. Went through the whole thing, fired up the new smtpd and find that while chkuser IS functioning, it's just not WORKING.
I'm just running a basic qmail 1.03 install. No vpopmail, no fancy stuff. In the following text, the rcpt to [EMAIL PROTECTED] should bounce. But it doesn't. my .qmail-default for the general mail server (affecting all domains) has nothing but the string # bounce-no-mailbox' in it but it just doesn't catch. ltaica:/var/qmail.new/bin# ./qmail-smtpd 220 altaica.tigerknight.org ESMTP mail from: [EMAIL PROTECTED] 250 ok rcpt to: [EMAIL PROTECTED] CHKUSER accepted rcpt: from <[EMAIL PROTECTED]::> remote <:unknown:unknown> rcpt <[EMAIL PROTECTED]> : found existing recipient 250 ok rcpt to: [EMAIL PROTECTED] CHKUSER rejected relaying: from <[EMAIL PROTECTED]::> remote <:unknown:unknown> rcpt <[EMAIL PROTECTED]> : client not allowed to relay 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.5.3 - chkuser) quit 221 altaica.tigerknight.org