E-Commerce Configuration Guide : Site Configuration Settings : Email Settings : emailRegEx
 
emailRegEx
Key value:
Regular expression you want to use for validation of email addresses
Description:
This setting allows for central management of the regular expression used for email address validation.
If present in the siteconfig.config file it overrides any other regular expressions that are used for email address validation in the following files: Email.ascx, Checkout.aspx, Checkout2.aspx and GuestLookup.aspx. You can populate it with the regular expression you want to use for validation of email addresses throughout your E-Commerce pages.
Example:
emailRegEx = ^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$
See also:
None