Also runs on Windows XP, Vista and Windows Server.


Bersoft Private Mail (BPM) is an email client for Windows that provides on-the-fly message encryption out of the box, protecting both the messages stored locally and the those sent (with Public Key cryptography) against prying eyes; it offers the utmost privacy and security in an easy to use package, along with the convenience of being portable.

Encrypted email clients have been around for about 25 years, but they are very difficult to use. Lately some providers are using on the cloud encrypted email services, but although this simplifies the process also makes it less secure, because there is no way to ever be completely sure your data will remain secure once you've moved it to the cloud.

BPM handles encrypted emails with transparency and ease without making them less secure, keeping all messages under your control.

Messages are saved locally, into the same folder where BPM was installed, under your direct control, protected with AES-256 encryption.

Secure email delivery uses an asymmetric RSA encryption system (similar to PGP) to provide end-to-end email encryption. Messages are also signed and verified automatically, to prevent meddlers from impersonating your correspondents.

Email messages remains encrypted on internal relay mail servers or when stored on the cloud (Gmail, Outlook, etc.). An unique feature is that encrypted messages can have its Subject and Sender encrypted; only the intended recipient (which has the proper Private Key) will be able to read the message, and see its Subject and Sender.

Besides the messages stored locally, configuration and contacts address book are secure because they are saved using AES-256 encryption. If the proper password is not supplied when the program starts, the data will be completely unreadable.

BPM is portable, it can run from an USB flash drive and can be copied from one computer to other –including its configuration, address book and messages– simply by copying its main folder.

BPM offers secure data deletion, deleted messages files are shredded and are not recoverable, also if you want to start from zero, you can delete all messages and mailboxes configuration with a single command.

An unlimited number of email accounts can be added. Both POP3 and IMAP mailboxes are supported. Active accounts can be checked automatically. A Bayesian spam filtering engine stops junks emails.

Messages can be arranged easily and located conveniently using multi-file offline search.


Asymmetric encryption




The trial version can be used, with a few restrictions, for up to 30 days.


Download Version 1.05 / 12.0 MB size / Runs on Windows 10, 8, 7, Vista and XP (32/64 bits). This is the evaluation version, which will run for up to 30 days. Also runs on Linux, using Wine. Most probably it can run on OS X as well (using Wine), but it has not been tested there yet.

Security warnings

Version Release History

1.00 July 15, 2015This is the first release.

1.01 Aug.  3, 2015What is new.

1.02 Aug.  5, 2015This release fixes some issues when receiving and forwarding messages.

1.03 Sep.  4, 2015What is new.

1.04 Oct. 15, 2015What is new.

1.05 March 7, 2016What is new.


What is new in version 1.01


What is new in version 1.03


What is new in version 1.04


What is new in version 1.05