I have tweaked the setup of the outbound e-mail server, so this should hopefully improve the delivery success of registration e-mails. Delivery to Hotmail /Outlook accounts have been particularly bad the last few weeks, according to feedback. Hopefully, this should be fixed now!
If you have had registration issues, I apologize for that, please try again now. And remember to check your spam folder as well. If the e-mail ended up in the spam folder, please make sure to mark the e-mail as “not spam” to help build the reputation on services such as outlook.com and gmail.com.