SecExMail Secure Email Encryption for Windows

Name: SecExMail Secure Email Encryption
Rating: 3 (8 reviews)
Author: Bytefusion

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Editors’ Review

Download.com staffFebruary 26, 2026

SecExMail provides real-time, client-independent email encryption using strong algorithms. It secures messages, attachments, and subject lines, protecting your confidential communications.

Pros
- Uses RSA and Twofish encryption algorithms.
- No email client plug-ins required.
- Real-time encryption and decryption.
- Encrypts subject lines and attachments.
- Compatible with all SMTP/POP3 clients.
Cons
- Automatic key exchange setup can be complex.
- No mention of mobile device support.

SecExMail Secure Email Encryption for Windows

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Used SecExMail Secure Email Encryption for Windows?

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Full Specifications

GENERAL

Release: April 30, 2003

Latest update: February 26, 2026

Version: 1

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows NT
Windows 95
Windows 98
Windows XP
Windows 2000
Windows 10
Windows ME

Additional Requirements: Windows 95/98/Me/NT/2000/XP

POPULARITY

Total Downloads: 26,755

Downloads Last Week: 6

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Program available in other languages

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Last Updated

User Reviews

3/5

8 User Votes

the information was useful
isabela34February 15, 2011
Pros
Is ease to use ,and install
Cons
wont work with pope or outlook email client,that was the reason i wanted to use it.
Summary
not for newbies...and suspicious
chuckymulletJanuary 20, 2006
Pros
Cons
my anti-spyware blocked it from loading a keyboard logger.
Summary
SSL Connection only in expensive Corporate edition
themisiekApril 15, 2005
Pros
Cons
E-mail servers (one is GMail) for my emails do not allow connections without SSL it is available only in Corporate edition with minimum licence for 20 users (minimum)for almost $1000.
Summary
The best by far!
February 9, 2004
Pros
Cons
Summary
I tried the well known PGP first (see my comments there). This was much easier to install and invisible to use. It installs so easy that anybody with an above 0 IQ could get it to work. Using it is even easier. I'm sold on this one!
either it does not work, or it sucks
smilingsatanNovember 19, 2003
Pros
Cons
Summary
i really don't know what these people are trying to do. I installed it on my machine, I sent an email through it to someone (after going through all the initial setup steps). The email shows up as normal, no encryption, nothing. Then I checked the email at another machine, and the message was all garbled. Is this hit or miss? are these people stupid? or am I missing something? there help section is as big as the tip of the thumbnail of an amputee. Screw this "free" software.
Works very well
alanatOctober 5, 2003
Pros
Cons
Summary
This is so easy and effective. I usued PGP for years and changed over to this. Get it!
Could not be easier...
September 16, 2003
Pros
Cons
Summary
Easy to install. Runs like a charm. I could not be happier with the price :) My humble thanks to the programmers that wrote this one!
It sucks
WMAugust 9, 2003
Pros
Cons
Summary
It does not work.

Developer’s Description

By Bytefusion

Encrypt and secure your e-mail to keep it confidential.

This e-mail encryption software uses RSA public key encryption and Twofish block cipher; SecExMail features PGP style e-mail keys, but without the dependence on e-mail-software-specific plug-ins. The software runs unobtrusively as a relay agent in the system tray on your desktop and actively filters messages between your e-mail client and your mail server, encrypting and decrypting mail to and from known users in real-time. SecExMail now includes an HTML filter, which eliminates the chances of malicious attacks via HTML e-mail. SecExMail is certified to operate with all SMTP POP3 e-mail clients, including Microsoft Outlook, Netscape Mail, IncrediMail, Pegasus, The BAT, Eudora, and Calypso. SecExMail protects against cryptanalysis at the protocol level: e-mail subject lines are encrypted. All attachments to secure messages are autoencrypted, including their filenames and MIME-type information. SecExMail is built on the Open SSL secure socket layer library and is compatible with Crypto Anywhere. The latest version now supports automatic key exchange and will automatically configure popular e-mail clients via a wizard.

SecExMail Secure Email Encryption for Windows

Editors’ Review

Pros

Cons

SecExMail Secure Email Encryption for Windows

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User Reviews

the information was useful

not for newbies...and suspicious

SSL Connection only in expensive Corporate edition

The best by far!

either it does not work, or it sucks

Works very well

Could not be easier...

It sucks

Developer’s Description