IPSec.
I am not too familiar with Hotmail, but from what I can find Hotmail does not offer email encryption. However, with certain programs, such as freenigma, you can add encryption to your emails.
Almost every email provider can offer signature encryption. Lotus notes and Outlook are two main email and service providers that offer encryption and protection.
The local of email delivery is irrelevant.
Email encryption technology is a very important tool used to protect personal information. Companies like symantec provide encryption tools that will secure credit card information, SS numbers, and other key information.
Security And Freedom Through Encryption Law - SAFE
vpn
Public Key Encryption
Public Key Encryption
The best way a business can make their outgoing emails more secure is through email encryption. This is done through third-party software. It includes encryption, quarantining or bouncing emails.
The program that provides for email communications is Outlook.
ECC