Sometimes you run into a deliverability situation where you need to segment specific email domains out to treat them differently than the rest - here is how you would support that type of use case in Zaius.
If you need to include only specific email domains in your segment, you can do that in the Demographics tab by looking at the Email field and changing the operator from "equals" (=) to "matches" (≈) and entering *@[domain] as your value - the asterisk serves as a wildcard. If you have multiple domains, use an OR statement to include them. In this example, we are including all the Microsoft domains:
Conversely, if you need to exclude a group of domains from your segment, you can use the "does not match" (≉) operator with AND statements. Here is an example of how to exclude Microsoft domains from your segment: