Addresses checked: 104.21.28.200 (web), 172.67.147.135 (web), 142.250.31.27 (mail, aspmx.l.google.com), 172.253.145.26 (mail, alt1.aspmx.l.google.com), 172.253.152.27 (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.