Checking if email is valid

[Chris Angelico]

On Thu, 2 Nov 2023 at 08:09, Grant Edwards via Python-list
<python-list at python.org> wrote:
> Make sure it has an '@' in it.  Possibly require at least one '.'
> after the '@'.

No guarantee that there'll be a dot after the at. (Technically there's
no guarantee of an at sign either, but email addresses without at
signs are local-only, so in many contexts, you can assume there needs
to be an at.)

So the regex to match all valid email addresses that aren't local-only
is... drumroll please...

r"@"

ChrisA