vrrp_instance VI_1 {
        interface eth1
        dont_track_primary
        state BACKUP
        virtual_router_id 61
        priority 150
        advert_int 1
        preempt_delay 600
        garp_master_delay 1
        mcast_src_ip 192.168.210.2
        lvs_sync_daemon_interface eth1
        track_interface {
                eth0
        }
        authentication {
                auth_type PASS
                auth_pass ieMu2jea
        }
        virtual_ipaddress {
               17.4.244.166/29 dev eth0
               17.4.244.161/32 dev eth0
               17.4.255.156/32 dev eth2
        }
}

virtual_server 17.4.244.166 25 {
        delay_loop 3
        lb_algo rr
        lb_kind DR
        persistence_timeout 0
        protocol TCP

        real_server 17.4.244.162 25 {
                weight 1
                inhibit_on_failure
                SMTP_CHECK {
                        host {
                                connect_ip 17.4.244.162
                                bindto 17.4.244.165
                        }
                        connect_timeout 1
                        retry 2
                        delay_before_retry 1
                        helo_name ha-fw2.company.net
                }
        }
        real_server 17.4.244.163 25 {
                weight 1
                inhibit_on_failure
                SMTP_CHECK {
                        host {
                                connect_ip 17.4.244.163
                                bindto 17.4.244.165
                        }
                        connect_timeout 1
                        retry 2
                        delay_before_retry 1
                        helo_name ha-fw2.company.net
                }
        }
}