[0x3f]

What's difficult about it? You know the domain, gregegan.net. You know the @ symbol, presumably. Then put literally any valid text before the @.

[0xEF]

Completely unrelated to the conversation, but our user names are remarkably similar.

[ghywertelling]

Is that even possible? Shouldn't the recipient email id need to be created first to be addressable?

[cyberlimerence]

Of course, the technical term for that setup is 'catch all', you can set this up with your email provider. You can send your email to "[e-mail]", for example.

[bornfreddy]

A friend gave out an email [e-mail] (he owns the domain). He says it's incredible how many people "corrected" him, and how persistent some of them were. :-)

[0x3f]

If you use the [company name]@yourdomain.com form, people who work at [company name] often say "wow, you work for [company name]??"