Addresses checked: 104.21.10.97 (web), 172.67.131.76 (web), 142.251.163.26 (mail, smtp.google.com), 172.253.115.26 (mail, smtp.google.com), 172.253.115.27 (mail, smtp.google.com), 172.253.122.26 (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.