9. BunkerMail vs. the competition Key Attributes BunkerMail Secure FTP PGP YouSendIt Fax Courier Easy to Use ✔✔✔ --- X ✔✔✔ ✔ ✔ Encryption in Motion ✔✔✔ ✔ ✔✔✔ ✔ X X Encryption at Rest ✔✔✔ X ✔ X X X Guaranteed Delivery ✔✔✔ X X --- X ✔✔✔ Rapid delivery ✔✔✔ --- ✔ ✔✔✔ --- X Inexpensive ✔✔✔ ✔ X ✔ --- X