Crypter Letter is an exclusive feature available only within Best Sender VIP. This feature allows you to encrypt your email messages for enhanced security and privacy.

With Crypter Letter, your messages are encrypted before being sent, ensuring that your sensitive communications are protected during transmission. Most of the messages sent by the client do not reach the recipient’s mailbox, but thanks to Best Sender VIP, your message is encrypted, guaranteeing a 99% delivery rate to the recipient’s mailbox. The encryption is robust and unreadable, yet the message appears completely normal within the mailbox, providing strong protection in the background.