No Change. No Gain.
If You Use Mac Mail...
To make sure Mac Mail never filters Processology email as spam, take the following steps:
STEP 1: Select Mail > Preferences from the menu in Mac OS X Mail
STEP 2: Select the Rules category and click Add Rule
STEP 3: Type a description and ensure the criteria reads correctly
STEP 4: Enter the domain name you wish to whitelist, and enter the actions you want to be performed
STEP 5: Click OK