My non-Gmail corporate email is
example.com and I'm
email@example.com. I created a new Gmail account (regular, not Google Apps) and added
firstname.lastname@example.org as an additional "send mail as:" address and I never receive the verification email at
email@example.com. It's not in any spam folder. Note that
example.com uses Gmail/Postini as the initial filter (possibly relevant that I'm using another Gmail service?) and the message isn't caught as spam there either.
Adding any other email address such as Gmail, Yahooor Hotmail works fine - I get the verification email. Seems too much of a coincidence that I receive the verification message at my personal email addresses but not my corporate one.
What am I missing?
I was't receiving the email because I had a previously-created-forgotten-about-and-not-in-production Google Apps account for example.com. As a result Gmail was delivering the verification email to the Google mail servers since from Google's point of view that domain's email is hosted by them rather than to my external example.com mailer.