Reg Expression - valid International email addresses?

[nagual]

Can anyone please help me with a regular expression
to test for Valid International Email Addresses?
Also, which version of javascript (1.2 ?) is needed for same?

Thanks.
Regards.

[Mark Szlazak]

The pattern with + is just one. I'm still waiting on those thousands.
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[Disco]

Mark Szlazak wrote:

The pattern with + is just one. I'm still waiting on those thousands.

I think the idea is to build an array of every singly possible valid email
address. How long is an email address aloud to be? 255 characters for the
name part?, then 255 characters for the domain name part?...

so, all you need to do is build an array with
4.6531388344983 681457769984555 62e+613 elements, then check if the inputted
email address is in taht array.
Simple.

[Jim Ley]

On 14 Jul 2003 01:17:35 GMT, Mark Szlazak <an*******@devd ex.com>
wrote:

The pattern with + is just one. I'm still waiting on those thousands.

You've already been given the link to the perl faq which contains a
RegExp many hundreds of chars long which is still not enough.

Jim.
--
comp.lang.javas cript FAQ - http://jibbering.com/faq/

[Steve van Dongen]

On 14 Jul 2003 01:17:35 GMT, Mark Szlazak <an*******@devd ex.com>
wrote:

The pattern with + is just one. I'm still waiting on those thousands.

Underscore (_) for starters. 1999 more to go.

The point is that even with a perfect regular expression, you don't
have any idea whether the address is valid or not. It is impossible
to determine unless you send mail to the account and get a response
from the person. By attempting to validate the email address, all you
do is risk disallowing valid addresses. If you're going to do any
validation at all just check whether there is a @ and a subsequent .
character.

Whenever I sign up for something and I don't really want mail I always
use my old ISP's "bitbucket" address because the incoming mail goes
directly into the NUL device. It's very efficient.

Regards,
Steve

[Mark Szlazak]

Two of my responses haven't posted over the last two days so I'll post
again and address Jim, John and Steve.

Jim now points to Tom's large regex and says that's still not enough.
Well it actually could be too much for someone else since patterns
may never occur in the wild! People may just be interested in whats
out there and if a simple regex email format validator good enough!

John talks about this when he mentions a topic related to reliability.
If a simple format checker is 99.99 percent reliable then what is the
significance of those false negatives? It maybe none. He also provides
a simple overall pattern but the OP may needs something more specific
to filter international emails ... whatever that means.

Steve then talks about two issues that are related but seperate. There
is the issue of a valid general email format and then the issue of
whether a specific instant of it exists.

I would be interested in some empirical data on what's out there and
how that has changed over time versus what's possible via specs.

Thanks.