My Outlook 2007 will not accept e-mails from only one address-- that belonging to my boss. It doesn't even shunt them to my junk e-mail folder; I only receive notice of them in my daily spam report. I can read the original message only if I access my e-mail account via webmail, where it shows up in my spam box.
To remedy the problem, I have added the target address to my safe senders list and turned off all spam filtering. But these methods haven't succeeded.