Views:
  • Configure the firewall (proxy-based) to route all outbound messages to IMSS, so that:
    • Outgoing SMTP messages can only go to Postfix first and then go to IMSS servers.
    • Incoming SMTP messages only come from IMSS servers.
  • Configure IMSS to allow internal SMTP gateways to relay, through Postfix, to any domain through IMSS.
Tip
Tip
For more information, see the Configuring SMTP Routing section of the IMSS Administrator's Guide.