Addresses checked: 20.253.0.33 (web), 142.251.167.26 (mail, smtp.google.com), 172.253.139.26 (mail, smtp.google.com), 172.253.62.26 (mail, smtp.google.com), 173.194.45.27 (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.