The correct email encryption using a gateway server E-Mail communications and the Internet have become nationally and internationally our lives just to indispensable and an integral part of our communications network for personal and business use of. Now it’s even statistically proven that most of this communication mainly via email, via regular mail or via fax. With the expansion of E-Mail communication, but also the problem of lack of email security has arisen. Just for E-Mails with confidential content, it is important to pay attention, because in principle any content of an email on its way from the sender to the receiver can be read, if it is sent not encrypted on the right E-Mail encryption. The protocols that are used in the various E-Mail programs represent a weakness of the lack of email security. So sets such as SMTP, the Protocol for the transmission of messages, no authentication mechanism. POP3, the Protocol, the access on the mail server allows any encryption opportunity in contrast to IMAP. Just when you send daily confidential data or content by E-Mail, you should be concerned about the use of encryption programs.

The encryption software PGP (pretty good privacy) and GnuPG (GNU Privacy Guard) are currently the standard programs used on the market. Another useful tool is the use of a so-called gateway server. This server will act almost like a postal station that protects the entire email traffic against unauthorized reading and manipulation. This system signed and decrypts the complete E-Mail traffic at a central point. This also applies to outgoing mail. A centralized certificate management ensures additional safety. Companies who place value on secure E-Mail encryption and communication, should deal somewhat more detail with this topic.