I had a request today regarding email server - the customer asks that I find a (free if possible) solution that could backup all incomeing and outgoing emails that are sent - received from the company.
The server(s) are Windows, and the mail-service is external. I was thinking to solve this via some kind of email "proxy" or something similar, that would act as a relay between outside and inside, and that would cache all email traffic.
The reason for this move is recent legal requirement to have a backup copy of all emails sent and received.
Thanks for help, and sorry for the imprecise terminology. :-)