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.

[David Dorward]

nagual wrote:

Can anyone please help me with a regular expression
to test for Valid International Email Addresses?

Yes, I know this says "Perl", not "JavaScript " but read it anyway. OK?

http://www.perldoc.com/perl5.8.0/pod...-mail-address-

--
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[Mark Szlazak]

The following uses regular expressions adapted from Jeffery Friedl's
book to check the format of an email string.

rxEmail =
/^\w[-.\w]*\@[-a-b0-9]+(?:\.[-a-b0-9]+)*\.(?:com|edu |biz|org|gov|in t|inf
o|mil|net|name| museum|coop|aer o|[a-z][a-z])\b/;

Convert to lower case before testing.

rxEmail.test(em ail.toLowerCase ());

Note that the pattern used non-capture parenthesis which are available
in IE5.5+ and JavaScript 1.5. For older browsers like NN4 replace (?: by
( in the above expression.
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[Jim Ley]

On 12 Jul 2003 16:27:45 GMT, Mark Szlazak <an*******@devd ex.com>
wrote:

The following uses regular expressions adapted from Jeffery Friedl's
book to check the format of an email string.

rxEmail =
/^\w[-.\w]*\@[-a-b0-9]+(?:\.[-a-b0-9]+)*\.(?:com|edu |biz|org|gov|in t|inf
o|mil|net|name |museum|coop|ae ro|[a-z][a-z])\b/;

Convert to lower case before testing.

rxEmail.test(e mail.toLowerCas e());

Note that the pattern used non-capture parenthesis which are available
in IE5.5+ and JavaScript 1.5. For older browsers like NN4 replace (?: by
( in the above expression.

My email address has a + in it, you don't seem to list that one
above...

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

[Mark Szlazak]

Well, then just put the + in.

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[Evertjan.]

Mark Szlazak wrote on 12 jul 2003 in comp.lang.javas cript:

Forgot one thing. If you only want international emails then modify the
regex to:

rxEmail =/^\w[-.\w]*\@[-a-b0-9]+(?:\.[-a-b0-9]+)*\.[a-z][a-z]\b/;

..int

as in:

http://www.who.int/

is THE international domain postfix.
..uk, .nl, .ca, etc are the NATIONAL ones
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Jim Ley]

On 13 Jul 2003 04:37:37 GMT, Mark Szlazak <an*******@devd ex.com>
wrote:

Well, then just put the + in.

and all the thousands of other legal characters... that's the problem
you're missing. I wouldn't bother with the validation at all... as
all you'll do is get a junk valid-looking email address, rather than
simply an incorrect one.

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

[Mark Szlazak]

If your seeking perfection and want to get all those "thousands" of
emails then speak to God.
I'm sticking with pragmatic solutions.

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[Jim Ley]

On 13 Jul 2003 14:57:45 GMT, Mark Szlazak <an*******@devd ex.com>
wrote:

If your seeking perfection and want to get all those "thousands" of
emails then speak to God.
I'm sticking with pragmatic solutions.

Because of the + in my email address being rejected, I've not done
over 3000 UKP worth of online business with various online agencies
this year (mostly computer equipment and travel.) now you may be
happy to throw away that business, after all I'm just one bloke right?
but are your clients fully aware?

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

[Dr John Stockton]

JRS: In article <3f************ *********@news. frii.net>, seen in
news:comp.lang. javascript, Mark Szlazak <ms******@aol.c om> posted at
Sat, 12 Jul 2003 21:07:39 :-

Forgot one thing. If you only want international emails then modify the
regex to:

rxEmail =/^\w[-.\w]*\@[-a-b0-9]+(?:\.[-a-b0-9]+)*\.[a-z][a-z]\b/;

International does not mean foreign; it includes America. Indeed, the
OP seems to be Australian. Some US E-mail addresses end, I believe, in
..us, as is right and proper. Many non-US ones end in .com or .net, too.

The existence of a national indication in most cases implies a
significant connection with that country, with certain well-known
exceptions; the converse is not true.

Don't believe all that you read in books; even if it was good when
written, which is uncertain, the facts might have changed.

There is little point in doing much validation on an E-address.

It is *impossible* to tell, other than by hearing of delivery, that an
E-address is deliverable to; I can change the rules at this site while
not connected to the Net. Attempted exact validation risks false
negatives (so it needs to be possible to send to an address that the
test actually rejects) and false over-confidence.

ISTM that the only reasonable validation is one checking that the field
is non-empty and that its contents match the minimum requirements; that
will deal with cases where some other piece of information is entered.

/.+@/+\..+/ seems about as strong a test as is appropriate; if I have
it right, check for something @ something . something .

E-address validation must be a FAQ candidate; it could provide a basis
for an entry on RegExps.

--
© John Stockton, Surrey, UK. ?@merlyn.demon. co.uk Turnpike v4.00 IE 4 ©
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