List of safe domains or addresses. By default, very few hosts are considered safe, as their addresses could be spoofed by spammers. However, ALTOSPAM uses a self-learning whitelist system to speed up the processing time for senders already tested and considered safe. ALTOSPAM allows users to create their own whitelists.
SMTP servers sending email from whitelisted IPs have been tested, certified and accredited. These extremely secure servers cannot (in theory) send spam. ALTOSPAM considers these servers to be reliable, but only to a limited extent.
Security starts in your mailbox. Phishing, Spear Phishing, malware, ransomware, spam, viruses – we offer a free 15-day analysis of your inbox.
