I signed up to get a hotfix from Microsoft, and used my @verizon.net address. I waited an hour, and never received the link to the download. I then tried with a gmail address, and the mail came through in under two minutes.
I have spam filtering turned off on the Verizon side. I looked in the webmail spam folder, anyway, just to be safe, and it was empty. The mail was also not in my email client's local spam folder.