Hey all, I'm setting up my first email server, loving Exim, and learning 
a ton.  I've gotten a surprising amount completed in my quest to set up 
my server, but I'm having trouble configuring SMTP authentication.  
Would LOVE some help, I'm not sure where to go next to fix this issue...

Context: I have multiple web apps that manage a set of config files for 
multiple virtual domains.

Right now, I'm using PLAIN/LOGIN auth methods only, no SSL (until I get 
it right without that added layer).

Here's my authenticators section:

PLAIN:
  driver                     = plaintext
  server_set_id         = $auth2
  server_prompts     = :
  server_condition    = {if 
exists{/var/mail/sites/${domain:${2}}/.accounts}\
                                  {if 
crypteq{$3}{\{md5\}${lookup{$2}lsearch{/var/mail/sites/${domain:${2}}/.accounts}}}{1}{0}}\
                                  {false}}

(LOGIN: is virually identical, obviously...)

Here's the file this is authenticating against:

[email protected]:<plain MD5 hash of pwd hex encoded here>

And finally, the error I'm receiving when attempting to authenticate 
from Thunderbird:

2009-02-03 16:53:12 PLAIN authenticator failed for 
cpe-076-182-088-055.nc.res.rr.com ([10.21.200.2]) [76.182.88.55]: 435 
Unable to authenticate at present ([email protected]): 
{if exists{/var/mail/sites/irongazeconsulting.com/.accounts}{if 
crypteq{monkey}{{md5}d0763edaa9d9bd2a9516280e9044d885}{1}{0}}{false}}

In english, I'm trying to write my server_condition to be: If there's an 
accounts file, look up the MD5 hash for the given account and compare it 
to the hash of the password the user sent.

It looks like all the string expansions are working correctly, so I'm 
guessing I have some formatting error, or a conceptual issue that I 
haven't identified.  Any and all help massively appreciated!

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