Doar is a free, open-source email client for Windows inspired by the classic Outlook Express: a clean three-pane window, fast and easy to use, without ads, accounts or telemetry.
It works with any IMAP/SMTP mailbox and signs in to Gmail and Outlook.com / Microsoft 365 with the provider's own login. Downloaded mail can be read, searched and sorted even without internet; changes are sent to the server once you are online again.
Highlights:
• Unified inbox for all accounts, conversations, fast full-text search without diacritics issues
• Works offline – including moving, deleting and folder changes
• Move or copy messages and whole folders between accounts by drag and drop
• Keep an account "on this computer only" after closing the mailbox on the server
• Backup to standard .mbox files and restore; import from Outlook (.pst), Outlook Express (.dbx), .mbox and .eml
• Rules, templates, scheduled sending, signatures with logo, address book with Google Contacts sync
• Safe HTML mail: remote content blocked, attachments that could run as programs are not opened
Optional AI: summarize, translate or suggest a reply – only when you click it, with your own provider (Anthropic, OpenRouter) or a local model. Nothing is sent otherwise.
• 9 languages including English, Slovak, Czech, German, Spanish, French, Hungarian, Russian and Hebrew
• Light and dark theme
EU
Korgus7 added Doar as alternative to Microsoft Outlook, Thunderbird, eM Client, Mailbird and 2 more
Korgus7 
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