Chat log into another server


we have implemented Openfire 3.6.4 and spark 2.5.8.

what i would like to be able to do is to have all chat logs to another server (network shares) how would i do that?

i tried to type in \remoteservername\share but it give me this error message: Please enter a valid absolute path.

is there a way around this?

Thank your for the replys

P.S. Awesome piece of software!!!