Addresses checked: 52.101.103.140 (mail, 360build-dev.mail.protection.outlook.com), 52.101.103.36 (mail, 360build-dev.mail.protection.outlook.com), 52.101.185.24 (mail, 360build-dev.mail.protection.outlook.com), 52.101.73.145 (mail, 360build-dev.mail.protection.outlook.com).
We check the web server and mail server IP addresses against free spam and malware blocklists. A listing usually means spam or malware was seen recently — follow the list’s own process to be removed.