Addresses checked: 13.248.243.5 (web), 76.223.105.230 (web), 142.251.165.27 (mail, aspmx.l.google.com), 172.253.157.27 (mail, alt1.aspmx.l.google.com), 173.194.45.27 (mail, alt2.aspmx.l.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.