There are a couple of websites that let you do this without running your own email server.
https://33mail.com is one, for instance (disclaimer: happy customer here.)
https://33mail.com is one, for instance (disclaimer: happy customer here.)
>>SMTP Error (450): Failed to add recipient "support@33mail.com" (4.1.8 <xxx@xxx.com>: Sender address rejected: Domain not found).
Hmmm don't even know how to contact them.