Sending Spark Messages to emails

Hi,

I was wondering if its possible to send all sparks messages through to the receipents email?

We are currently using it as a messagebank and when away or out of the office, messages have to be manually sent to the individual via Outlook Exchange so they can receive it on their iphones.

Is there a way on spark that I can send a message through spark that will send it through to their email directly? Would i need to changed to openfire? Is so can someone explain it, didnt understand the explanation of the software.

Please help!

Thanks.