[Exim] auto-reply for mysql transport

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I am setting up auto-responder in my exim box, where the current transport i have is :--

mysql_vacation:
driver = accept
condition = ${if eq{}{${lookup mysql {SELECT home FROM passwd WHERE id='${local_part}\@${domain}' AND vacation=1}}}{no}{yes}}
transport = mysql_vaca
unseen

it grab a path "/path/to/user/" from the mysql databases, it stop running lately.



I need to redesign the thing, is it possible that i create a vacation table in mysql, with user, reply column, so whenever one send mail to me with auto-responder activated, exim will look up the vacation table, get the specific reply for that user, and auto-reply to the sender ?

If it is possible, what should i put in my exim.conf ? thanks !

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