OK. I suppose that is a limitation, if you rely on email to run your business these days... Ugh...
Discussion
Basically all small businesses still rely on email. Hell, some still use fax machines...
Please don't talk to me about fax machines... Ugh.
I hate email.
Nostr has had a real damping effect on my tolerance for bad systems...
For my business we run Libre Office, Mailcow, FreePBX, and a self hosted Wordpress site for visibility. And I spend too much time keeping it all running. They want turn-key solutions with very little maintenance. And they don't mind giving money to an evil empire like Microsoft every month. I do at least try to inform them of the benefits of running FOSS software, but very few want to make the switch.