# Enable Loadbalancing and Responder
enable ns feature LB RESPONDER

# Create AppExpert DataSet for relayed IP addresses
add policy dataset DS_MailRelay ipv4
bind policy dataset DS_MailRelay 192.168.100.21 -index 1
bind policy dataset DS_MailRelay 192.168.100.22 -index 2

# Create Responder policy which resets all connection with a source not from DataSet
add responder policy rs_pol_ACLMailRelay "CLIENT.IP.SRC.TYPECAST_TEXT_T.CONTAINS_ANY(\"DS_MailRelay\").NOT" RESET

# Create Loadbalancer for SMTP Relay
add server pitex01 192.168.100.31
add server pitex02 192.168.100.32
add service svc-smtp-pitex01 pitex01 TCP 25
add service svc-smtp-pitex02 pitex02 TCP 25
add lb vserver lb-vsrv-mailrelay.domain.pit-SMTP TCP 192.168.100.90 25 -persistenceType SOURCEIP -timeout 10 -netprofile NP-192.168.100.12
bind lb vserver lb-vsrv-mailrelay.domain.pit-SMTP svc-smtp-pitex01
bind lb vserver lb-vsrv-mailrelay.domain.pit-SMTP svc-smtp-pitex02

# Bind ACL Responder policy to SMTP Relay LB vServer
bind lb vserver lb-vsrv-mailrelay.domain.pit-SMTP -policyName rs_pol_ACLMailRelay -priority 100 -gotoPriorityExpression END -type REQUEST