bug#51733: 27.1; Detect impossible email addresses better

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: 51733@debbugs.gnu.org,  jidanni@jidanni.org
> Date: Sun, 16 Jan 2022 17:33:49 +0100
> 
> > Then what about text-security.el? or textsec.el?
> 
> Yes, that'd work.  Or...  string-analysis.el?

Is such an "analysis" useful for any other purposes than the one you
want to use it?

> With functions like `string-scripts' (lists the different scripts in
> the string)

That one should probably be elsewhere.  Although even in that case, I
don't really see how it could be useful for anything other than this
particular purpose?  I bet most Lisp programmers don't even know what
is a "script" in the Emacs context.