I am having the same problems as above.
For some reason I am not receiving confirmation from people I have added to the wii message boards, some of them are now 2 weeks old!!!!!
Does anyone know if Nintendo are going through teething issues with the e-mail.
Everyone I have registered has been getting their 'register with wii friend' mail, but yet everyone is still blanked off so I cannot send out any emails.
The thing is, the very first time we did this, we were on wireless and sent it to a hotmail account, within 5 mins the email address was registered and he had sent me a message.
So its not just mine that is having email problems.