My email provider gives me the option of using my own domain (which I’m using for business) or their generic domain for creating login aliases. Is there an argument for one over the other. I can see arguments for both options. Anonymity isn’t such an issue since it is business, I use different domains for personal.
If anonymity isn’t something you’re trying to attempt then using your own domain would be okay. Benefits of that is it might be more trustworthy for clients to see your domain associated with your business replying.
The second thing is that it might not be blocked, sometimes Simplelogin and Anonaddy general domains are blocked on certain sites.