Top 5 Freeware Applications to Protect Electronic Mail

Written by:  • Edited by: Bill Bunter
Updated Aug 8, 2011
• Related Guides: Email | Encryption | Encryption Software

Prevent unauthorized users now from intercepting and viewing the emails you want to exchange with others by reading about some of the available freeware (listed here in the article) to help safeguard your emails.

Protecting E-mails

Using an encrypted software program allows you to protect any confidential emails. It will help keep information private and data protected. There are freeware available to help protect emails, so users have no reason to worry.

Advise: As part of recognizing the importance of email communications, users need to rely on protecting their electronic mail (possibly with one of the freeware programs mentioned in the next section).

How it works:

The process requires encryption; this entails taking the plaintext of the email and scrambling it, so it won't be legible if intercepted. In order for the recipient to read the email, it must be decrypted by using a password (or key). For example, public key encryption uses a key to encrypt the data and another key to decrypt it.

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Figure 1.

Network Associates - Introduction to Cryptography

Freeware Programs

Users need email protection they can trust. The freeware applications mentioned next can be trusted for safeguarding emails.

1. iSafeguard Freeware 6.2 - This program can safely secure your files and e-mails. It uses a strong encryption and digital signature. Supports the following e-mail clients: Microsoft Outlook, Microsoft Outlook Express, Yahoo Mail, Hotmail, Gmail, Juno Mail, Lycos Mail, Eudora Webmail, Brinkster WebMail. It also supports Text, RTF and HTML e-mails.

2. HushMail - This is a Web-based email service that uses a Java applet to encrypt and decrypt messages. It is able to encode emails using a 1024 bit public key encryption. E-mails attachments are also encrypted.

3. SafeExpress - It is the free version of a commercially available product. The features are the same, but an ad window is added. This software is an e-mail client that is easy to configure and features automatic e-mail encryption and anti-spam filters.

4. Flexcrypt free - This software allows users to encrypt e-mails as well as text, files, MSN and ICQ communications.

5. Sbwave - This program allows users to send and receive encrypted email via a web form. It requires no software to install. It also doesn't have users sign up for anything and does not place ads in the e-mails.

Remark: Each link contains information that is pertinent to the software. Read before downloading and installing.

Here is the information on where to download each program...

  • iSafeguard Freeware 6.2: http://download.cnet.com/iSafeguard-Freeware/3000-2092_4-10188979.html
  • HushMail: http://www.hushmail.com/
  • SafeExpress : http://netsafesoft.com/nss/download.htm
  • Flexcrypt free: http://www.flexcrypt.com/flexcryptfree.html
  • Sbwave: http://www.sbwave.com/enkryptor/encrypt.html

Other useful but less popular free email encryption programs:

  • Izemail 1.7 - Available at izecom.com. It encrypts and sign emails just by pressing the Send button in the email program.
  • TextKrypt 1.1 - Available at paradox-industries.com. It allows the secure sending of plaintext emails through Outlook Express.

Alternative solution: Users can decide not to run any software at all and send a secure email via Sendinc (Send Technology Inc.) who offers an easy-to-use, free email encryption service. "Sendinc creates a secure key for your recipients and encrypts your message using the same algorithm the NSA has deemed fit for the encryption of TOP SECRET documents." [1]

Other options: Users can choose a secure email client like Mozilla Thunderbird, which is a cross-platform client software package that is compatible with Windows, Mac, and Linux. With Thunderbird, it can safely protect emails by discovering scams. It offers filtering, phishing, and encryption capabilities. A similar email client that is very flexible and secure is Claws Mail. Tip: Use an email client that can interpret HTML email.

Freeware program in the spotlight: Gold Lock Desktop offers email encryption for mobile phones and computers. It is a suitable freeware email encryption program for wireless network email communications. It uses RSA and AES encryption algorithms to securely protect electronic mail. (site: https://www.gold-lock.com/app/en/Home)

Protecting Apple Mac OS Emails

Try: GPGMail - contains no encryption coding; instead, it uses PGP (Pretty Good Privacy) keys to be able to encrypt/sign a message. And, it will encrypt and decrypt mails using the OpenPGP standard. (Site: http://www.gpgtools.org/gpgmail/index.html)

Current version: Version 1.3.3 (release date: 22 March 2011)

Requirements: OS X 10.6 (Note: the older version does support 10.3, 10.4, 10.5)

Download: 3 MB

Protecting Linux Emails

Try: GnuPG - is an open source replacement for PGP. The GNU Privacy Guard (GnuPG) is a command line too for secure communication that allows encryption and decryption of documents. Available versions: 1.4.11 (referred to as GnuPG-1) and 2.0.18 (referred to as GnuPG-2 and released August 4, 2011). Both are compliant with the OpenPGP and S/MIME standards. (Site: http://www.gnupg.org/)

Reference Section

[1] Send Technology Inc. (Send a Secure Email Now): https://www.sendinc.com/

Email Software: http://emailsoftwarepro.com/

Freeware PGP versions: http://www.pgpi.org/products/pgp/versions/freeware/

Image: Network Associates - Introduction to Cryptography


Comments

Showing all 4 comments
 
Gina Sep 20, 2011 8:54 AM
must include eCrypt.me
This is all well and good but I would recommend you visit eCrypt.me site if you're looking for secure email and secure online storage provider. It's very easy to understand and use and is designed as a closed loop system. It uses asymmetric encryption for secure exchanges, no backdoors and best of all its free! you don't need to give up your current email address!
Mel Spain Mar 1, 2011 3:03 PM
How about A-Lock
Is there a particular reason that you do not include A-Lock in this list?

How did you identify the products that are included?

I'm not related to A-Lock but it happens to have been recommended and I'm searching for comparative info.
Alex Feb 8, 2011 1:08 AM
GPGTools
I think GPGTools should be mentioned here. The page http://gpgtools.org is hosting and maintaining all GPG related open source software for OS X.
Martin Hoffman Sep 28, 2010 6:34 AM
Key or Password
I read "it must be decrypted by using a password (or key)"

So, how do you get a password or key to the recipient without anyone else getting it?
 
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