Addresses checked: 172.64.80.1 (web), 104.21.85.254 (web), 172.67.213.77 (web), 192.178.129.26 (mail, aspmx.l.google.com), 192.178.158.26 (mail, alt1.aspmx.l.google.com), 142.250.100.26 (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.