Addresses checked: 104.21.37.39 (web), 172.67.203.185 (web), 142.251.127.27 (mail, aspmx.l.google.com), 172.253.147.27 (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.