I visited Apple's developer website to download Xcode, the Apple Developers package that includes all the software you need to compile applications yourself. I was trying to download Putty for OSX using DarwinPorts, however it requires the OSX development tools to be installed. Before downloading Xcode you are required to register for a free ADC account. Since I have a .Mac account, I used my .Mac email address. At the end of the registration I was told to click the link in the confirmation email.
Fifteen minutes go by and I don't receive any confirmation email in my .Mac inbox. This is an Apple Developers site -- you would think sending the confirmation email to an Apple email account would be instant! I tried sending the email to my Yahoo account and within seconds the confirmation email arrived.