Exchange2016 multi-domain name transceiver

After setting up exchange2016 for customers, because it is a .local suffix, you need to receive mail from .com domain names, and you need to set up multiple domain names to send and receive. However, according to the practice of 2010, after adding to the accepted domain, only one domain is logged in when you create a user. Later, you ask the customer service that you need to add the UPN suffix to the AD domain trust relationship.

At this time, when you create a new user, you can select the domain suffix in which the user is logged in, but the suffix is still .local after creation, and it is found that the address policy has not been changed. I choose to create an address policy directly for OU. The suffix of the OU is assigned to the OU under which the user is created, so that one more organizational unit needs to be selected when creating a new mailbox user.