Yes i heard about VPN but in some cases in a big environnement you cannot play with networks and firewalls as you like. And there is a lot of remote sites to discuss, create VPN trought all theses remote sites is to complicated to maintain.
yes i need to find a plugin like djigzo but djigzo is too heavy product (postgrey, web server... ) that requires too much components to implement Le samedi 23 octobre 2010 à 11:00 -0500, Stan Hoeppner a écrit : > David Touzeau put forth on 10/23/2010 7:30 AM: > > Yes it for a company between remote sites trough internet that need to > > be sure that documents cannot be opened. > > i know pgp but there no informations how we can hook postfix or there is > > not such filter that should perform this operation. > > Why don't you simply setup a VPN tunnel between the sites? This is > exactly the scenario for which VPN technology was created: > > http://en.wikipedia.org/wiki/Virtual_private_network > > The two routers currently in place may already have VPN capability that > you can simply configure in a few minutes. If not, setup a couple of > Linux VPN gateways, one at each site. After that, simply create a host > file entry on each SMTP server with the FQDN of the other and its > RFC1918 address, so each sends SMTP to the other over the encrypted VPN > tunnel. > > VPN is not new--been around for 10 years or so, and they are _widely_ > used. Have you never heard of a VPN? >