Sometimes it's not about competence but about priority. If email is something a business does as a side thing and not a core thing, and if email keeps working w

Sometimes it's not about competence but about priority. If email is something a business does as a side thing and not a core thing, and if email keeps working without changing anything, there's no need or priority on setting up newer things. From a priority perspective at least. But yes if it's a recent setup, or email is a core part of the product, any competent sysadmin should have been doing this.