It's part of the registration ... both forum and email update. You should have received a confirmation email, and once confirmed ... a welcome message.
Let me know if you've received it ... or not, since you posted this.
Best,
Mike
PS
BTW ... all of the mailings are archived the same day, here ...
Same here, I registered a week ago..but never received a confirmation or welcome email, and no other emails. Have no idea now how to activate my email...