back to basics: what's wrong with this exim condition statement?

["Bob Goldberg" <bobg.hahc@gmail.com>]

running debian etch (which is exim4);

I'm having problems with an ACL; so i've gone to absolute basics, and I still have a problem :)

So here's what I have in my ACL:

  accept message = condition is false 
    condition = ${if eq{23}{123}{1}{0}} 


next, I telnet in, and transact an email up to the rcpt to: command.
IF my condition uses 123 & 123 (IOW: it's true), my rcpt to: command is accepted - just what I expected.
however, with the above condition, I would expect to get the message "condition is false", and instead I get "unexpected failure".

I tried appending an "endpass", but that did nothing.

what's wrong with my accept / condition statements?

TIA - Bob