FreshAddress's SafeToSend service provides comprehensive protection against undeliverable and harmful email addresses, including spamtraps, honeypots, heavy spam complainers, role accounts, and other problematic addresses that can lead to blocking and blocklisting by ISPs. The service is comprised of three components: Hygiene, Correction, and Validation, which flag problematic addresses, correct syntax and formatting errors, and validate the deliverability of all email addresses. FreshAddress's technology and expertise allow them to identify and correct more hygiene errors than other providers, and they utilize email-specific activity and purchase data to inform their results. The service guarantees 100% safe and deliverable email addresses that drive higher response rates, conversions, and profits.