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Courier Alternatives

Courier Alternatives

Courier

Courier was the evolution of the Calypso email client.

It kept messages and attachments, account settings, filters, address book and program settings (including UI) within a single encrypted mailbox file.

Features

- Support for multiple email accounts
- Configurable, intuitive interface
- Support for POP and IMAP mailboxes
- Ability to turn HTML mail viewing on or off in any window with a single mouse click
- "Color Markers" to help organize your messages
- Automatic mailbox backup
- Mailing list support, including "Blind Send" capabilities
- Superb mail filtering capabilities, including advanced anti-SPAM tools.
- Easily configurable for server and proxy based anti-SPAM programs.
- Address auto-completion when composing mail
- Multi-language spelling support
- Auto-response capability
- Mail templates
- Mail archiving
- Optional password protection for mailboxes

Best Courier Alternatives for Windows

Are you still using Courier? Let's compare it to the best other options below. Maybe one of these Courier alternatives will work on your device, too.

Thunderbird

Thunderbird

FreeOpen SourceMacWindowsLinuxBSDPortableApps.comHaiku

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

Features:

  • Extensible by Plugins/Extensions
  • Support for IMAP
  • Built-in RSS reader
  • Encryption
  • SMTP integration
  • Add-ons
  • Calendar integration
  • Extensions
  • Multiple Account support
  • Protected by Password
  • Tabs
  • Built-in Calendar
  • Categories
  • Customizable
  • Delivery reports
  • Extensible by Plugins/Extensions
  • Free API
  • Gmail integration
  • Google Calendar integration
  • Import from Google Reader
  • Gui
  • HTML Compose
  • Integrated Chat
  • Integrated Password Manager
  • Integrated Web Browser
  • Intuitive
  • Legacy addons support
  • Export to OPML
  • Import feeds from OPML
  • Organize mails
  • POP3 Support
  • Portable
  • Secure File Sharing
  • Support for POP3
  • Tabbed interface
  • Support for Themes
Microsoft Office Outlook

Microsoft Office Outlook

FreemiumMacWindowsWebAndroidiPhoneAndroid TabletWindows PhoneiPadApple WatchAndroid Wear

Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Features:

  • Address book integration
  • Built-in Calendar
  • Calendar integration
  • Exchange
  • Box.com integration
  • Contacts
  • Custom rules
  • Dropbox integration
  • Email scheduling
  • Exchange Integration
  • Flight Status
  • Gmail integration
  • ICloud Integration
  • Integrated Search
  • Multiple Account support
  • Night mode/Dark Theme
  • Office 365 integration
  • Onedrive integration
  • Organize mails
  • Shared calendars
  • Signature with image
  • Smart attachments
  • Todos
  • Unified inbox
  • Yahoo Integration
Postbox

Postbox

CommercialMacWindows

Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power...

Features:

  • Exchange
  • Multiple Account support
  • Box.com integration
  • Built-in RSS reader
  • Dropbox integration
  • Extensible by Plugins/Extensions
  • Support for IMAP
  • Multiple languages
  • Onedrive integration
  • POP3 Support
  • Tabbed interface
  • Visual Programming
Claws Mail

Claws Mail

FreeOpen SourceWindowsLinuxBSD

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration...

Features:

  • Lightweight
  • Built-in RSS reader
  • Content Filtering
  • Customizable
  • Extensible by Plugins/Extensions
  • Support for IMAP
  • Integrated Email Client
  • Multiple languages
  • Multiple Account support
Sylpheed

Sylpheed

FreeOpen SourceMacWindowsLinuxBSDPortableApps.com

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and...

Features:

  • Lightweight
  • POP3 Support
  • Portable
The Bat

The Bat

CommercialWindowsS/MIMEOpenPGP

The Bat! is a secure email client software, built to protect your correspondence against third-parties. .

Features:

  • Built-in RSS reader
  • Support for IMAP
  • POP3 Support
  • Portable
  • QR code generator
  • Scripting
  • SMTP integration
  • Syncs with GMAIL IMAP
Microsoft Mail and Calendar

Microsoft Mail and Calendar

FreeWindowsWindows S

Windows 10 has Mail and Calendar apps already built in. With the Mail application you can now easily see all message from your...

Features:

  • Email tracking
  • Run in background
  • Task Management
  • Bundled with Windows
Kontact

Kontact

FreeOpen SourceWindowsLinux

Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful...

Features:

  • Contacts
  • Convert Email to Task
  • Feed Reader
Foxmail

Foxmail

FreeWindows

Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

Features:

  • Insert appointment
  • Mouse gestures
  • POP3 Support
  • Portable

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