Email Validation in Oracle Apex 5

Steps...

Step 1. Create a item type as Textfield .
Step 2. Create Validation on this Textfield and select Validation>>Type >> Item Match Regular Expression.
Step 3. Then type this code in Regular Expression .Always Execute will >>No

Email Validation Expression:

^[a-zA-Z0-9][a-zA-Z0-9\.\-]{1,}@[a-zA-Z]{1}[a-zA-Z\.\-]{1,}\.{1}([a-zA-Z]{3,3}|[a-  zA-Z]{2,2}\.{1}[a-zA-Z]{2,2})$

Step 4. Give a Error Message for wrong email type. And Display Location will inline with Field and in Notification. 

It will work. I guess.