The Bat!
~$30 one-time (30-day trial) · Desktop Email Client
Download for your platform
Windows
DownloadThe Bat! is a proprietary email client for Windows developed by RITLabs. It emphasizes security, privacy, and local storage all email is kept on your hard drive with no cloud sync dependency. It has been maintained continuously since 1998 and is particularly popular in Eastern Europe and among users with strict data security requirements. A 30-day free trial is available; the license is a one-time purchase around $30.
Version: 10.x License: ~$30 one-time (30-day free trial)
Platform: Windows only
Windows
Windows 7 / 8 / 10 / 11 · 32-bit and 64-bit · Trial available
What is The Bat!?
The Bat! stores all email in a proprietary mailbox format on your local drive. It does not use Windows MAPI, which isolates it from some system-level vulnerabilities affecting other Windows email clients. IMAP, POP3, and SMTP are supported; Microsoft Exchange requires third-party middleware or IMAP access.
Built-in S/MIME and OpenPGP encryption are standard features, not add-ons. The Bat! Voyager edition is a portable version that runs from a USB drive without installation useful for users who need to access email from multiple machines without leaving a trace on host systems.
The message template system is one of the most advanced in any desktop client: templates support conditional logic, macros, and custom variables, which allows detailed automation of reply formatting for different accounts or contact groups. Sorting office rules (message filters) can trigger on a wide range of conditions and run external programs as actions.
The interface is dated by modern standards it has not received a significant visual redesign in many years but it is stable and responds well to customization through layout options and themes.
Key features
Key features
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About the Author
Alaa · LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. I’ve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
About SMTPedia
SMTPedia is an independent email industry reference covering SMTP, IMAP, POP3, email deliverability, marketing platforms, DNS authentication, and email verification. Every article is researched from official provider documentation, IETF RFCs, and industry best practices. Settings and configurations are verified quarterly.
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