OT: regex to find email

[Josh Close]

On Wed, 22 Sep 2004 08:59:08 +0200, Fredrik Lundh
<fredrik at pythonware.com> wrote:
> Jorgen Grahn wrote:
> 
> > I've seen no references to RFC 2822 in this thread ... please note that what
> > all these regexes catch is unlikely to be exactly the set of all valid RFC
> > 2822 addresses.
> 
> the perl faq is also required reading:
> 
> http://www.perldoc.com/perl5.6/pod/perlfaq9.html#How-do-I-check-a-valid-mail-address-
> 
>     Q. How do I check a valid mail address?
> 
>     A. You can't, at least, not in real time. Bummer, eh?
> 
>     Without sending mail to the address and seeing whether there's a human
>     on the other hand to answer you, you cannot determine whether a mail
>     address is valid.
> 
> what morally sound reasons are there to scrape mail addresses from text
> documents, btw?
> 

Well, I do know that a lot of email hosting companies like hotmail,
yahoo, etc, have certain standards for user names which are probably a
lot more strict than RFC2822. That's what I was going by, but it could
possibly miss a few names/domains with it.

-Josh