[Exim] Exiscan-SA-Sql question

Now that you can handle SA with ACLs, how do you pass "$local_part@$domain"
(which is what I'm using on Exim as username) on
to spamd (or spamc ?) which you had previously in transports.

"transport_filter = /usr/bin/spamc -u $local_part@$domain"


Also, would love to get some help in rewriting this condition to pick
up the max
score from mysql (field names: username,preference,value and table: userpref)

deny    message        = This message scored $spam_score points.
         spam           = nobody:true
         condition      = ${if >{$spam_score_int}{100}{1}{0}}