DETAILS
Hotmail spam filters can filter out email sent from OISSite.com if the security level is set high. Email in the Hotmail junk folder are typically removed after 5 days so it is possible for you to miss email sent from OISSite.com.

In order to avoid missing any emails sent by OISSite.com, take the following steps:

Go to:
Mail Options >> Junk E-Mail Protection >> Safe List

Add to this list: oissite.com