PLANET CS-2001 - Manual (Page 743)

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26.1.4 Creating a MX Record to Load Balance a Mail Server
Using the Round-Robin Mode
Step 1. Go to Advance > Inbound Balancing > Settings and then set as below:
 Click New Entry.
（Figure 24-33）
 Enter the Domain Name.
 Tick Enable DNS zone.
 Click New Entry.
（Figure 24-34）
 Select A(Address) for DNS Record Type.
 Type main in the Host Name field.
 For Real IP Address, type 61.11.11.11 and then select WAN1.
 Select Round-Robin for Load Balancing Mode.
 Click OK. Select 1 for Weight and select 1 for Prioirty.
 Click New Entry.
（Figure 24-35）
 Select A(Address) for DNS Record Type.
 Type main in the Host Name field.
 For Real IP Address, type 211.22.22.22 in the field and select WAN2
from the drop-down list.
 Select Round-Robin for Load Balancing Mode.
 Click OK. Select 2 for Weight and select 2 for Priority.
 Click New Entry again.
（Figure 24-36）
 Select MX(Mail eXchanger) for DNS Record Type.
 Type mail in the Host Name field.
 Type main.supportplanet.com.tw in the Mail Server field.
 Click OK.
（Figure 24-37）
Figure 24-33 Adding a New Domain Name