Comments on: Validating Email w/PHP http://mybrokenlogic.com/2010/07/15/validating-email-wphp/ Nothing is impossible until I say it can't be done. Tue, 19 Apr 2011 00:50:13 +0000 hourly 1 http://wordpress.org/?v=3.3 By: streaky http://mybrokenlogic.com/2010/07/15/validating-email-wphp/comment-page-1/#comment-198 streaky Fri, 17 Dec 2010 14:39:37 +0000 http://mybrokenlogic.com/?p=91#comment-198 According to 2821 sec5 you are correct. The good news is nobody who actually wants email sets up their dns without at least one MX record. That said it's probably something to bear in mind. Learn something new every day I guess :) According to 2821 sec5 you are correct. The good news is nobody who actually wants email sets up their dns without at least one MX record.

That said it’s probably something to bear in mind.

Learn something new every day I guess :)

]]> By: DimeCadmium http://mybrokenlogic.com/2010/07/15/validating-email-wphp/comment-page-1/#comment-196 DimeCadmium Tue, 30 Nov 2010 09:54:26 +0000 http://mybrokenlogic.com/?p=91#comment-196 Email sent to a domain which has only an A record typically gets delivered to that record, doesn't it? So this isn't a complete check. I.e. A only: sent to A A+MX: sent to MX Email sent to a domain which has only an A record typically gets delivered to that record, doesn’t it? So this isn’t a complete check.
I.e. A only: sent to A
A+MX: sent to MX

]]> By: Jason http://mybrokenlogic.com/2010/07/15/validating-email-wphp/comment-page-1/#comment-132 Jason Fri, 06 Aug 2010 13:06:11 +0000 http://mybrokenlogic.com/?p=91#comment-132 http://github.com/doctrine/doctrine1/blob/master/lib/Doctrine/Validator/Email.php This is the best validation for an email address I've seen - similar to your thoughts, and the source doc they refer to is a good read as well - http://iamcal.com/publish/articles/php/parsing_email/pdf/ http://github.com/doctrine/doctrine1/blob/master/lib/Doctrine/Validator/Email.php

This is the best validation for an email address I’ve seen – similar to your thoughts, and the source doc they refer to is a good read as well

– http://iamcal.com/publish/articles/php/parsing_email/pdf/

]]> By: streaky http://mybrokenlogic.com/2010/07/15/validating-email-wphp/comment-page-1/#comment-126 streaky Sun, 25 Jul 2010 20:41:52 +0000 http://mybrokenlogic.com/?p=91#comment-126 To an extent that's true. That being said, if you're anything like me you've seen your databases full of this sort of crap in signups et al: dsfs@dsfsdf.com fsdfdsf@dffsdfs.com At the end of the day it's all a little pointless for everybody involved thus - be a bit smarter about it. I'm not actually all that convinced it's very sophisticated either to be fair, I mean have you seen the close-to-RFC 2822 regexps? And they don't even tell you if the bit on the end is even slightly legit. That said it's all about helping users not make mistakes, if they type @gogglemail.com as opposed to the correct domain, this is why we do input validation at the end of the day - sending a validation email doesn't fix that, and user wonders why they didn't get a validation email. Obviously it won't end that - but it will help. To an extent that’s true. That being said, if you’re anything like me you’ve seen your databases full of this sort of crap in signups et al:

dsfs@dsfsdf.com
fsdfdsf@dffsdfs.com

At the end of the day it’s all a little pointless for everybody involved thus – be a bit smarter about it. I’m not actually all that convinced it’s very sophisticated either to be fair, I mean have you seen the close-to-RFC 2822 regexps? And they don’t even tell you if the bit on the end is even slightly legit.

That said it’s all about helping users not make mistakes, if they type @gogglemail.com as opposed to the correct domain, this is why we do input validation at the end of the day – sending a validation email doesn’t fix that, and user wonders why they didn’t get a validation email. Obviously it won’t end that – but it will help.

]]> By: TheOnly92 http://mybrokenlogic.com/2010/07/15/validating-email-wphp/comment-page-1/#comment-125 TheOnly92 Sun, 25 Jul 2010 07:22:04 +0000 http://mybrokenlogic.com/?p=91#comment-125 Is it really necessary to have so sophisticated check? Just send a validation email and it will mostly tell you if the user uses a legit email or not... Is it really necessary to have so sophisticated check? Just send a validation email and it will mostly tell you if the user uses a legit email or not…

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