Regular Expression for validate email address

[Mike1961]

Hello.

I have this Regular Expression for validate email address in my form:

[php]var re = new RegExp("^[a-z][a-z0-9]*\\.[a-z][a-z0-9]*(\-WEDNES)?@Names\\.com$", "i");[/php]

Why invalid this email address ??? :

mark.d'[e-mail]

Is the ' ?
The ' can exist but is not obligatory...

Can you help me?
Thanks

[pronerd]

Why invalid this email address ??? :

mark.d'ausilio-W

The regular expression allows for letters and numbers, but that address has special characters in it. I am not sure if " ' " is allowed my most email servers. Even if it works in your specific setup it may not work when others try to send email to you, so it would be a good idea to change it.

[Mike1961]

The regular expression allows for letters and numbers, but that address has special characters in it. I am not sure if " ' " is allowed my most email servers. Even if it works in your specific setup it may not work when others try to send email to you, so it would be a good idea to change it.

these emails are business and assigned by the webmaster for name and surname employee... can not be changed...

[pronerd]

these emails are business and assigned by the webmaster for name and surname employee... can not be changed...

So what? None of that changes what I already told you. Your admins email setup choices do change how regular expressions work. If your emails are going to have special characters then your expression will have to allow them to valid them.

[Mike1961]

So what? None of that changes what I already told you. Your admins email setup choices do change how regular expressions work. If your emails are going to have special characters then your expression will have to allow them to valid them.

How to change regular expression to validate character ' ?

[acoder]

If you must, add the single quote in the [a-z0-9] part, i.e. [a-z0-9']

[Mike1961]

If you must, add the single quote in the [a-z0-9] part, i.e. [a-z0-9']

many thanks !!!!
working !!!

[acoder]

You're welcome. Never doubted that it wouldn't ;)