Mail server backend IP address: 10.3.0.110
Virtual service IP address assigned to the Array box for client to communicate: 10.3.47.250

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Configure SLB for OWA service:
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slb real http "exchange_owa1" 10.3.0.110 80 1000 tcp 3 3
slb real http "exchange_owa2" 10.3.0.111 80 1000 tcp 3 3

slb group method "owa_group" ic "nfmohbgjx" 1 rr
slb group member "owa_group" "exchange_owa1" 1
slb group member "owa_group" "exchange_owa2" 1

slb virtual http "owa_virtual" 10.3.47.250 80 arp 0
slb policy icookie "owa_ic_policy" "owa_virtual" "owa_group" 1
slb policy default "owa_virtual" "owa_group"

http owa on
http rewrite response https owa_virtual

ssl host virtual mail.company.com owa_virtual
ssl start mail.company.com

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Configure SLB with Exchange Native Protocol:
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slb real tcp "exchage_pop1" 10.3.0.110 110 1000 tcp 3 3
slb real tcp "exchage_pop2" 10.3.0.111 110 1000 tcp 3 3

slb real tcp "exchage_smtp1" 10.3.0.110 25 1000 tcp 3 3
slb real tcp "exchage_smtp2" 10.3.0.111 25 1000 tcp 3 3

slb real tcp “exchange_rpc1” 10.2.0.110 135 1000 tcp 3 3
slb real tcp “exchange_rpc2” 10.2.0.111 135 1000 tcp 3 3

slb group method “pop_group” rr
slb group member "pop_group" "exchage_pop1" 1
slb group member "pop_group" "exchage_pop2" 1

slb group method "smtp_group" rr
slb group member "smtp_group" "exchage_smtp1" 1
slb group member "smtp_group" "exchage_smtp2" 1

slb group method “rpc_group” pi 32 rr
slb group member "rpc_group" "exchange_rpc1" 1
slb group member "rpc_group" "exchange_rpc2" 1

slb virtual tcp "pop_virtual" 10.3.47.250 110 arp 0
slb virtual tcp "smtp_virtual" 10.3.47.250 25 arp 0
slb virtual tcp "rpc_virtual" 10.3.47.250 135 arp 0

slb policy default "smtp_virtual" "smtp_group"
slb policy default "pop_virtual" "pop_group"
slb policy default "rpc_virtual" "rpc_group"