To ensure mail delivery, you want HES/HES - Inbound Filtering to point to more than one mail server.
This article will show you how to add multiple IP addresses for a domain managed in HES and how to configure failovers in HES.
You can configure multiple Inbound and Outbound servers in the HES Domain Management console.
Follow these steps:
- Log in to the HES console
- Go to Domains.
Click your domain then add/edit your Destination Servers.
For mails to be delivered in a specific order, preferences of Inbound Servers should be set differently based on your desired priority.The lower the number, the higher the priority.
For mails to be delivered in no particular order, preferences of Inbound Servers should be set the same.Preferences are numbers from 1-100.
For Outbound Filtering, you may opt to add additional Outbound Servers.
Click image to enlarge.