If you’re a user of Microsoft Office 365 or Google’s mail (whether Gmail or their paid Google Workspaces), you may not be aware of a feature you’ve had access to for years: subaddressing.
History
You’re likely aware of what an email address looks like, for instance, food@spanishkopita.uk, but do you know why? It’s because email started as a way to address users on specific computer networks and was designated as a “destination mailbox” AT “the computer network.” This continued throughout the expansion of the internet, eventually leading to services for people who didn’t want to deal with setting up email on their computers.