DNN 5.6.1 Email Validation ProblemPosted: February 8, 2011
There are some changes between 5.6.0 and 5.6.1 in how to validate email with RegExp in User Accounts.
These changes may break email function at DNN 5.6.1 site if you don’t have a working regular expression setup in Admin>User Settings>User Accounts Settings—-Email Address Validation: textbox.
To leave this textbox BLANK on your site may cause the validation problem with the validation bug introduced in DNN 5.6.1.
You can add a value which worked prior to 5.6.1:
After you add this value, you can find this new entry from PotalSetting table at your DNN database. Your email validation function should work now. In our case, we can send emails from Dynamic Form (DataSpring) on our site again.