When you use ProofMail, we may collect: Account Information — such as your name, email address, and billing details. Email Metadata — sender, recipient, subject line, and timestamp (only as needed to generate a Proof Pack). Proof Pack Data — original email (.eml file), cryptographic hash, and signed PDF certificate. Technical Information — IP address, browser type, and usage logs for security and performance monitoring. We do not access, read, or sell the contents of your personal or business emails.