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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 Open Source Courier Alternatives

For the best Courier alternative check out these alternatives which will work with your device & platform. There are several Courier-like software that you might want to check as well.

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
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
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
iRedMail

iRedMail

FreemiumOpen SourceLinuxBSDSelf-Hosted

A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64...

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