SOFTWARE

The Bat! Professional Edition 12.3.1 Portable for Windows

Published September 24, 2026
Author Leauger
Updated September 24, 2026
The Bat! Professional Edition 12.3.1 Portable for Windows

The Bat! Professional Edition 12.3.1 is a recognized email messaging system that perfectly combines all the features required by an experienced user. Its intuitive interface allows users to get started immediately after installation. An effective filtering and sorting engine helps handle the massive incoming mail flows that other programs struggle to handle. System administrators will appreciate the batch installation option, which allows for personalized control over installation. All these features, along with fully customizable automated processing tools, free users from routine work.

Personal Information Security

The Bat! distinguishing feature is its broadest support for authentication and encryption protocols when working with mail servers. It is one of the most secure email clients available, used by many companies for whom protecting private information is a matter of life and death. The latest versions feature smart security buttons that help make user information truly private. It reliably protects your email from system failures thanks to backup and synchronization capabilities, as well as from deliberate data corruption and leakage of confidential information during email transmission over the internet. Secure CRAM-MD5 authentication prevents unauthorized users from accessing your email account.

Virus Protection Tools

Offline Address Book
The Bat! uses its own address book, separate from the Microsoft Windows Address Book. The Microsoft Windows Address Book, used by Microsoft Outlook, Outlook Express, and other programs, is the primary target of all virus attacks, as viruses extract email addresses from the Microsoft Address Book for further propagation.

Internal HTML Viewer
The internal HTML viewer built into The Bat! is independent of the system HTML rendering module and Microsoft Internet Explorer. It supports HTML 4.0 and CSS v2.0 document formatting styles, and ignores scripts and executable code, which are the main cause of viruses. This prevents viruses that exploit known vulnerabilities in Microsoft Internet Explorer HTML from penetrating your computer.

Correct Handling of Attached Files
The Bat! warns the user about possible viruses before attempting to open files with suspicious extensions, and allows you to block certain file types from running. The user sees the actual extension of attached files. If an attached file has a double extension, such as photo.jpg.exe, The Bat! will display an additional warning.

Selective Download
Selective download allows you to delete an email or leave it on your POP3 or IMAP4 server without waiting for the message to download. Selective download filters can be used to combat viruses and unwanted ads.

Antivirus Scanner Interface
The Bat! can scan attached files for viruses using an interface to popular antivirus scanners. Supported programs include Kaspersky Anti-Virus, Dr. Web, NOD32, Panda, Sophos, Bit Defender, and the Ukrainian National Anti-Virus.

Filtering and Automation

Built-in Mail Sorter
The built-in Mail Sorter automatically sorts incoming, outgoing, read, and processed email into appropriate folders. Setting up sorting rules takes just a few minutes.

Automatic Message Processing
The Mail Sorter allows you to automate message processing: set up auto-replies, launch external applications, add recipients to your address book, export or archive messages, extract attached files, and much more.

Templates
The Bat! not only adds a signature to messages but also lets you create email templates using a wide variety of specialized macros. Any mailbox, folder, or recipient can have its own template for new messages, replies, or forwards.

Quick Templates
Quick templates allow you to automate email creation and save time by inserting pre-written text into your email. Both quick templates and regular templates feature a full set of macros.

Mailing Lists
The email filtering system is so powerful that The Bat! allows you to implement a mailing list where members can add or remove themselves from the list.

Unique Parking Feature
With parking, you can pin an email to a specific folder and prevent it from being accidentally deleted or moved.

Backup and Synchronization

Backup
All program settings, address books, and mail folders can be saved in a separate file and later restored from the backup in the event of unwanted changes or data loss. The archive can be commented and password-protected. The Bat! also allows you to create a separate backup for each mailbox.

Mail Synchronization
You can synchronize the contents of multiple copies of The Bat!. Mail synchronization allows you to maintain the same state for two copies of The Bat!.

Security and Encryption

Powerful Encryption
The internal PGP implementation, based on the widely recognized OpenSSL engine, allows you to encrypt messages and digitally sign them. A convenient digital key manager is included. Free add-ons for PGP v5.5, v6.0.2, 6.5, v7.x, and v8.x, including GnuPG, are also supported. The Bat! supports S/MIME via its Internal Implementation or Microsoft CryptoAPI. It is the first email client to support S/MIME data compression. The Bat! supports Secure Socket Layer v3.1 and Transport Layer Security v1.0 with the AES algorithm.

Additional Features

Compatibility with Microsoft Exchange
The Bat! connects to Microsoft Exchange servers using the MAPI protocol for retrieving and sending messages.

National Encodings
The Bat! works correctly with all encodings, including all Russian and Eastern European ones: KOI8-R, Windows-1251, DOS, ISO, and more.

Mail Dispatcher
The dispatcher allows you to process mail on a POP3 or IMAP server without waiting for it to download.

Address Book
The address book contains a list of your recipients. You can organize them into groups for classification or use addresses as a mailing list. Each address entry can be customized with a photo, personal information, work information, email templates, and default encoding.

Image Viewer
The Bat! features its own image viewer. Users can switch between all images attached to an email. The viewer supports rotation, resizing and scaling algorithms, and full-screen mode.

Request Forms
Forms are a tool for generating requests for automated processing.

Rich Import Capabilities

The Bat! allows you to import messages from other email clients including Google Contacts, Microsoft Outlook Express v4.xx, v5.0, v6.0, Netscape Communicator v4.xx, Netscape Mail v2.xx and v3.xx, Eudora Lite and Pro, and Pegasus Mail v2.xx or v3.xx.

Interface Languages

The Bat! interface is available in 12 languages. You can change the interface language on the fly, without restarting the program.

Updates and Installation

The Bat! is fully compatible with the new Windows Restart Manager. System administrators will appreciate the new silent installation feature, which allows The Bat! to be installed without user intervention.

Format and Compatibility

Available for Windows systems. Portable version included.

File Size: 788.2 MB

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