I have a problem with DNN, the registration process works but the verification email never gets sent out -
An e-mail with your verification code has been sent to your e-mail address: email@address.com Please access your in-box and get the verification code, which is required to log-in first time.

So, no one can login because they never receive the verification email, all other emails are sent using the newsletter, admin emails all work and the admin new registration email works, all but the verification email does not.  So, any email that is sent out from the admin works but any email sent to another email account does not work.
Any clue or help in this would be much appreciated.

I would start by looking into the Log Viewer under the admin menu (login as host) to see if there are any error messages in there. Then I'd start looking at your SMTP service to see if it's not setup to relay properly.

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Chris Hammond
Former DNN Corp Employee, MVP, Core Team Member, Trustee
Christoc.com Software Solutions DotNetNuke Module Development, Upgrades and consulting.
dnnCHAT.com a chat room for DotNetNuke discussions

hey sorry I may just had a bad day.
It's pretty easy (although I had to look at the source code to figure it out)
In host->hosting settings, you can set your smtp username and password. If you enter a valid user and password for you mail server it should work.
dotnetnuke is still cool.