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I ma trying to set up BATV in exim but i am always getting an error:

F=<> temporarily rejected RCPT <>: invalid "condition" value ""

Corresponding ACL:

deny message = Invalid reverse path signature
    senders = :
    !condition = ${prvscheck {$local_part@$domain}\
            ${lookup mysql{SELECT batv FROM virtual_users \
                 WHERE email='${quote_mysql:$prvscheck_address}'}}\
        {${if eq{$prvscheck_result}{}}}\

Exim version 4.72 OS: CentOS 6.3

Really don't know what to do.

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Here correct version:

deny message = Invalid reverse path signature
    senders = :
    condition = ${if eq{\
            ${prvscheck {$local_part@$domain}{PRVSCHECK_SQL}{1}}\
    !condition =$prvscheck_resul
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