If you have email from legitimate sources that is getting flagged as spam, you can ensure their email gets to you buy adding their email address to Outlook's Safe Senders list.  Here's how (for Outlook 2010/2013):


  1. Open Outlook, then go to the Home ribbon 
  2. In the Delete section, press the Junk button, then select Junk E-mail Options 
  3. Switch to the Safe Senders tab, then press the Add button to add addresses to the list (see below) 
  4. To exempt your contacts and other people you email from spam filtering, check the two boxes at the bottom of the window (Also trust…, Automatcally add…)  
  5. Press OK