Then this happens:
|Oracle Account Registration|
This isn't just small company's and little custom website, this issue is prevalent on some BIG companies websites.
It all comes down to regular expressions, which are a standard way of defining and validating a format, and for years when you googled 'email address regular expression', and clearly a lot of people did because the problem is everywhere, you ended up with this:
And its wrong! Its a simple email address regular expression which is missing all sorts of 'unusual' characters / & % and most annoying for me '.
If you want to be correct against the RFC definition of an email address you need this(!):
Although I would be happier, im sure a lot of the other Irish descendants, with this:
For more information and a lot more background about validating email addresses head over to http://www.regular-expressions.info/email.html
28/2/2013 - Found another SiteCore
14/06/2013 - And another, Prometric