bug#51733: 27.1; Detect impossible email addresses better

[Lars Ingebrigtsen]

Robert Pluim <rpluim@gmail.com> writes:

> How about "Contains suspicious characters or mix of characters"? That
> would at least point users in the right direction.

I'm not 100% that it's not misleading in all cases, though.  textsec
still doesn't implement "Unicode Identifier and Pattern Syntax":

  https://www.unicode.org/reports/tr31/

There's some other stuff in there...  But I might be quibbling.

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   bloggy blog: http://lars.ingebrigtsen.no