Cipher Mail

Cipher Mail (暗号メール) is a system from the Mega Man Star Force (series) series. In the mail menu,

by composing a mail with the subject "Cipher" and the cipher text in the message.

In Mega Man Star Force (video game), the Cipher Mail is a secret system that Omega-Xis discovers by looking at Geo Stelar's Transer. The message is sent to the Satellite Admin in the first game and to Legendary Master Shin in Mega Man Star Force 2. In Mega Man Star Force 3 it is changed to the Cipher Code and is given to Ken Suther's Wizard.