Question: Is there an IP address for the AssetCloud & InventoryCloud servers to enter into my organization's Exchange Server to allow it to relay your email?
Answer: You will need to whitelist all of these addresses. The IP address may change in the future, but if they do we will release a notification at least 30 days before the change:
This IP address is used for email from the reporting services:
AWS SES addresses
Although the address rarely change they may change without notice.
You can query for the address using.
nslookup -type=TXT amazonses.com