NAT Outbound for Exchange server



  • I can't to force exchange server using Virtual IP (20.x.x.x) to out.
    Manual Outbound NAT rule generation
              (AON - Advanced Outbound NAT)

    Interface Source Source Port Destination Destination Port NAT Address NAT Port Static Port Description
    add new mapping
    WAN  192.168.5.x/32 tcp/25 * tcp/* 20.x.x.x (WAN IP) *
    YES

    edit mapping
    move selected rules before this rule add a new nat based on this one
    WAN  192.168.5.0/24 * * * * *
    NO

    Any Suggest?
    Thanks.