Addresses checked: 162.159.143.30 (web), 172.66.3.26 (web), 192.178.212.26 (mail, smtp.google.com), 192.178.212.27 (mail, smtp.google.com), 192.179.16.26 (mail, smtp.google.com), 209.85.200.26 (mail, smtp.google.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.