Steve Holden <[EMAIL PROTECTED]> writes:
> Ben Finney wrote:
> > I don't "validate" email addresses by regular expression.
> >
> Just as a matter of interest, are you expecting that you'll find out
> about the undeliverable ones? Because in many cases nowadays you
> wont, since so many domains ar
In article <[EMAIL PROTECTED]>,
Damjan <[EMAIL PROTECTED]> wrote:
>>> you'd create something to allow anyone to
>>> potentially spam the hell out of a system...
>>
>> I'm sorry, but I fail to see how validating (or not) an email address
>> could prevent using a webmail form for spamming. Care to
> >
> Just as a matter of interest, are you expecting that you'll find out
> about the undeliverable ones? Because in many cases nowadays you wont,
> since so many domains are filtering out "undeliverable mail" messages as
> an anti-spam defence.
>
...and then there is the problem of validating th
Ben Finney wrote:
> "John Machin" <[EMAIL PROTECTED]> writes:
>
>
>>What proportion of deliverable e-mail addresses have more than one @
>>in them?
>
>
> I don't know. Fortunately, I don't need to; I don't "validate" email
> addresses by regular expression.
>
> What proportion of deliverable e
>> you'd create something to allow anyone to
>> potentially spam the hell out of a system...
>
> I'm sorry, but I fail to see how validating (or not) an email address
> could prevent using a webmail form for spamming. Care to elaborate ?
The best way would be to implement some limiting features.
Ben Finney wrote:
> "John Machin" <[EMAIL PROTECTED]> writes:
>
> > What proportion of deliverable e-mail addresses have more than one @
> > in them?
>
> I don't know. Fortunately, I don't need to; I don't "validate" email
> addresses by regular expression.
>
> What proportion of deliverable email
"John Machin" <[EMAIL PROTECTED]> writes:
> What proportion of deliverable e-mail addresses have more than one @
> in them?
I don't know. Fortunately, I don't need to; I don't "validate" email
addresses by regular expression.
What proportion of deliverable email addresses do you want to discard
Bruno Desthuilliers wrote:
>> if you were creating a web app with an email form... rather than try to
>> check if the email is valid...
>
> Ever bothered to read the relevant rfc ?
or the perl faq:
http://faq.perl.org/perlfaq9.html#How_do_I_check_a_val
--
http://mail.python.org/mailma
Ben Finney wrote:
> Steve Holden <[EMAIL PROTECTED]> writes:
>
> > Ben Finney wrote:
> > > The best advice I've seen when people ask "How do I validate
> > > whether an email address is valid?" was "Try sending mail to it".
> > >
> > That only applies if it's a likely-looking email address. If som
bruce wrote:
> so ben...
>
> if you were creating a web app with an email form... rather than try to
> check if the email is valid...
Ever bothered to read the relevant rfc ?
> you'd create something to allow anyone to
> potentially spam the hell out of a system...
I'm sorry, but I fail to see
Ben Finney wrote:
...
> The best advice I've seen when people ask "How do I validate whether
> an email address is valid?" was "Try sending mail to it".
There are advantages to the regex method. It is faster than sending an
email and getting a positive or negative return code. The delay may not
b
Steve Holden <[EMAIL PROTECTED]> writes:
> Ben Finney wrote:
> > The best advice I've seen when people ask "How do I validate
> > whether an email address is valid?" was "Try sending mail to it".
> >
> That only applies if it's a likely-looking email address. If someone
> asks me to send mail to
Ben Finney wrote:
> "John Machin" <[EMAIL PROTECTED]> writes:
>
>
>>A little more is unfortunately not enough. The best advice you got was
>>to use an existing e-mail address validator. The definition of a valid
>>e-mail address is complicated. You may care to check out "Mastering
>>Regular Expre
[Please don't top-post above the text you're replying to.]
"bruce" <[EMAIL PROTECTED]> writes:
> if you were creating a web app with an email form... rather than try
> to check if the email is valid...
Where did I advise not checking? I advised the only kind of check that
actually works.
> you'
gs to the user...
peace...
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf
Of Ben Finney
Sent: Thursday, September 21, 2006 6:07 PM
To: python-list@python.org
Subject: Don't use regular expressions to "validate" email addresses
(was: Ineed som
"John Machin" <[EMAIL PROTECTED]> writes:
> A little more is unfortunately not enough. The best advice you got was
> to use an existing e-mail address validator. The definition of a valid
> e-mail address is complicated. You may care to check out "Mastering
> Regular Expressions" by Jeffery Friedl
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