Enable Advanced antispam scan to use the most recent reputation-based information when scanning emails for spam.
Follow the steps below to enable advanced antispam scanning to record spam scores for all new email and more closely examine emails for signs of spam.
Press the F5 key to access Advanced setup.
Expand Web and Email → Email Client protection.
Expand Antispam Protection, click the slider bar next to Allow advanced antispam scan and then click OK.