Hi, Not sure if this is still an issue in 3.4, but I'm seeing tons of FPs on RCVD_ILLEGAL_IP. Why? Because Microsoft (damn it to hell) has started using RESERVED IP ranges internally! Have a look:
Received: from BLUPR10MB0835.namprd10.prod.outlook.com (0.163.216.13) by BLUPR10MB0835.namprd10.prod.outlook.com (0.163.216.13) with Microsoft SMTP Server (TLS) id 15.1.136.25; Mon, 20 Apr 2015 17:43:48 +0000 Is anyone else seeing a sudden uptick in RCVD_ILLEGAL_IP FPs? Regards, Dianne.