[syslog-ng] Howto configure grep to parse multiple mail recipients

[C. L. Martinez]

Hi all,

 I am trying to parse some Ironport logs to cacth mutliple destination
recipients using grep in value option:

recipient: $(grep ("${to_address}" != "") ${to_address})

but it doesn't works ...

 What am I doing wrong?? I am using syslog-ng 3.3.5 under CentOS6.

 Thanks.