On Mon, Aug 25, 2025 at 8:27 AM D. Hugh Redelmeier via Talk < talk@lists.gtalug.org> wrote:
From: Ron via Talk <talk@lists.gtalug.org>
A tip when going into this, "Valid" can mean "Was Once Valid per RFC".
I started the test. I disagree with their answer to the first question, so I gave up.
easy@example.com
I say "invalid" because example.com is a reserved domain. They say "valid".
I didn't get that pedantic because clearly they were going for testing on formatting rather than content. Some of the later examples, including some valid ones, are clearly ridiculous email destinations. (Won't say more, that would be spoiling....)
As described in RFC 2606 and RFC 6761, a number of domains such as example.com and example.org are maintained for documentation purposes. These domains may be used as illustrative examples in documents without prior coordination with us. They are not available for registration or transfer.
They do, however, seem perfectly suitable for a silly test with domains nobody is expected to actually use. The website it's hosted on is a domain under .WTF for heaven's sake. Oh, BTW, 15. -- Evan Leibovitch, Toronto Canada @evanleibovitch / @el56