Eleidon replaces external email with a trust-first messaging protocol. Senders must get your explicit approval first via non-editable trust requests so no unsolicited messages ever arrive. All messages are end-to-end encrypted with automatic malware scanning for links and attachments. Custom @yourcompany addresses, team management, and Vault multi-device sync are optional paid features. Everything else is free. Built for teams and enterprises who need secure comms without the breach risk.