J B wrote:
On 9/21/05, Michael Sims [EMAIL PROTECTED] wrote:
Additionally, some mail servers unconditionally accept mail
addressed to ANY username at their domain, whether that user
actually exists or not. This is very bad practice, because it
usually means the accepting MTA is a dumb host
Jim Moseby wrote:
I threw together this totally untested and unreliable code to solicit
comments on whether or not this is a good way to validate emails. Consider
the following:
pseudocode
function validate_email($email){
if (str_word_count($email,'@')!=1){return('Not a proper email
So, what is the general thought about validating email
addresses in this
manner?
JM
Thre is a good reason why virtually everyone uses regex
patterns for email validating.
Excellent start! And that good reason is...?
How can regex ensure that the email address that is submitted is
this task can get...
-Original Message-
From: Jim Moseby [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 21, 2005 11:01 AM
To: 'Al'; php-general@lists.php.net
Subject: RE: [PHP] Re: email validation (no regex)
So, what is the general thought about validating email
addresses
Jim Moseby said the following on 09/21/05 11:00:
So, what is the general thought about validating email
addresses in this
manner?
JM
Thre is a good reason why virtually everyone uses regex
patterns for email validating.
Excellent start! And that good reason is...?
How can regex
jim...
validating email means different things to different people...
True, but for the most part people just want to know whether a user has
entered a real working email address into their forms. What better test
than to try to send an email to it?
but there's no way you're going to
Hello,
on 09/21/2005 02:49 PM Jim Moseby said the following:
I threw together this totally untested and unreliable code to solicit
comments on whether or not this is a good way to validate emails.
Consider
the following:
So, what is the general thought about validating email addresses in
(Forwarding private reply to the list)
-Original Message-
From: Al Rider
Sent: Wednesday, September 21, 2005 2:19 PM
To: Jim Moseby
Subject: Re: [PHP] Re: email validation (no regex)
What you have is virtually impossible to determine if all legitimate
possibilities are covered
What you have is virtually impossible to determine if all legitimate
possibilities are covered.
email validation using regex is a very heavily analyzed subject
Google regex email validate and you'll find loads of expressions.
Look at the Zend article, it provides some insight.
I
: Wednesday, September 21, 2005 12:01 PM
To: 'Jim Moseby'; php-general@lists.php.net
Subject: RE: [PHP] Re: email validation (no regex)
What you have is virtually impossible to determine if all legitimate
possibilities are covered.
email validation using regex is a very heavily analyzed subject
because you should want/need to validate that the address is correct prior
to determining if the email server is up running...
the regex function simply allows you to quickly determine if the address
is
valid... doens't mean that it's going to go to an actual live user...!!
btw simply
btw simply checking for a single '@' with a domain doesn't do
it... what if
the user has '[EMAIL PROTECTED]' or '[EMAIL PROTECTED]'. will your
regex accept/deny
this???
My function will quickly deny those because the DNS lookup for them will
immediately fail. Will your regex deny '[EMAIL
because you should want/need to validate that the address is correct
prior
to determining if the email server is up running...
the regex function simply allows you to quickly determine if the address
is
valid... doens't mean that it's going to go to an actual live user...!!
btw
but you could do what you want to do. however, it's going to
be painful if
you want it to match the rfc spec...
Really? Why does it need to be painful? I just need to do a 'EHLO', 'Mail
From:' and 'RCPT to:' and 'QUIT'. It's not going to actually send an email.
Seems simple to me. Maybe
Philip Hallstrom wrote:
but you could do what you want to do. however, it's going to be
painful if you want it to match the rfc spec...
Really? Why does it need to be painful? I just need to do a
'EHLO', 'Mail From:' and 'RCPT to:' and 'QUIT'. It's not going to
actually send an email.
-Original Message-
From: Jim Moseby [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 21, 2005 12:21 PM
To: php-general@lists.php.net
Subject: RE: [PHP] Re: email validation (no regex)
btw simply checking for a single '@' with a domain doesn't do
it... what if
the user
On 9/21/05, Michael Sims [EMAIL PROTECTED] wrote:
Additionally, some mail servers unconditionally accept mail addressed to ANY
username at their domain, whether that user actually exists or not. This is
very
bad practice, because it usually means the accepting MTA is a dumb host
that has
J B wrote:
On 9/21/05, Michael Sims [EMAIL PROTECTED] wrote:
Additionally, some mail servers unconditionally accept mail addressed to ANY
username at their domain, whether that user actually exists or not. This is
very
bad practice, because it usually means the accepting MTA is a dumb host
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