PHPBB verification email to user not working

Question

I am using PHPBB. I want new users to receive a verification email when they register but it is not working.

My settings:

• I am using version 3.1.4.
• Enable board-wide emails: Enabled
• Email function name: Mail
• Contact email address: My email address on my host
• Use SMTP server for email: No

When I send a 'mass email' it is received so I know the email address and facility works.

No error log issues to report.

I cannot find a solution for this anywhere.

Would appreicate some help.

Thanks