2. Confidentiality E-mail E-mail of certainty 3. 4. quality of the information. E-mail recipients can read text from the screen five. The data is sent by E-mail can be sent as text, images, sound and animation.
2. Keeping secrets E-mail 3. The certainty of the E-mail 4. The quality of the information, the recipient can read the text of the E-mail from 5, monitor . Data to send the E-mail can send text, image, sound and animation.