Getting validation for an email address using JSCAPE's Secure iNet Factory library is a lot easier than getting personal validation (although let me say right now, dear Reader, that I think you're smart to learn more about the EmailInspector class, and you're all right with me!). The EmailInspector class has four levels of validation and you can give a submitted email address only as much scrutiny as it needs. In each case, the EmailInspector returns true if the address passes validation, and throws an exception if it does not.

Email messages are made of required parts, such as the bunch-of-exclamation-marks part ["HOO!!!!!!!"], the emoticon part [;-)], and the abbreviations part [ROTFL]. All emails are required to contain these parts (at least, all the emails I get have them), as well as other parts such as the Subject, the From, the To and the Body. The JSCAPE Secure iNet Factory library lets you use Post Office Protocol 3 (POP3) to write a client program that will retrieve your email and look at the parts. (That is, the parts in the second list!!!!!!! LMAO :-)).

Using JSCAPE's Secure iNet Factory library, it's not hard to retrieve your email easily and with complete security from GMail, Hotmail or other servers that require APOP authentication, and we'll show you how in this article. On the other hand, how does your hand-addressed Christmas card get all the way across America to your Aunt Petunia's house, traveling over purple mountain majesties and across fruited plains, carried by trains and airplanes and, for Pete's sake, by a friendly mail person who walks it down the street? This process is a complete mystery and some scientist should investigate it!

So let's say you have developed a marvelous herbal supplement that will help men grow larger ears, and you need to share this discovery with the world (or at least, that part of the world that is willing to send you $12.95 for your special mix of grass clippings from your backyard). You can use SMTP (Simple Mail Transfer Protocol) to route your message through the Internet, and the Secure iNet Factory library to help you write a Java program to do this.

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SCP is another old SSH (Secure Shell) file-transfer protocol — it can be traced back to the rcp command that was added to BSD Unix in 1982, which makes it the same age as ET The Extraterrestrial. It may have been the protocol ET used to communicate with his mothership. If he had had JSCAPE's Secure FTP Factory library, things might have gone more easily.

If you're a programmer, you've already learned dozens of TLA's (Three Letter Acronyms). If a phrase has four words, of course, we don't call the acronym an "FLA" because any civilian could understand that. We call it an ETLA (Extended Three Letter Acronym)! In the previous article, you saw how to use JSCAPE's Secure FTP Factory to safely transmit files using the fine ETLA FTPS. This time, we'll show you an even better way to transfer files securely using the even cooler ETLA SFTP. Being able to remember things like this is the mark of a professional programmer.

When two little kids want to exchange a secret, a lot of negotiation is necessary: "Promise you won't tell? Cross your heart and hope to die?". When a client and server computer want to exchange secrets, they need to negotiate too: public keys, encryption methods, ports and more. Fortunately, JSCAPE's Secure FTP Factory and server software (such as JSCAPE MFT Server) handle most of the details for you.

Here's some philosophy to go with the Secure FTP Factory library. There are some things in life that you should never do unless you feel completely secure. One of them is withdrawing money from an ATM. You should do this only in a safe, well lit and preferably high traffic environment where you are unlikely to be robbed. Another is uploading or downloading files using plain FTP (File Transfer Protocol).