Microsoft Office Outlook Alternatives for Linux

Microsofts Office Outlook is one of the most used software in the world. It's of course most famous as a e-mail client but it can do much more. This list of alternatives is mainly focused on the e-mail part of things. Remember that you can filter to show only web alternative or even self-hosted alternatives by using a platform filter.

Maybe Calendar Integration or a built in RSS-feed support is important to you. Also remember that you can browse other apps as well if you for example looking for a dedicated todo-manager or a RSS reader.

The list of alternatives was last updated: 10/27/2017 3:31:00 PM

Alternatives to Microsoft Office Outlook for Linux with any license

  • Thunderbird

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. It supports POP (storing mail locally on your hard drive so that it can be accessed without an internet connection), and IMAP. It features excellent mail filter capabilities and management. Thunderbird has strong support for using multiple accounts and identities, including automated signature features.

    • Despite its age, Thunderbird remains the most fully featured email client out there. Various add-ons can extend its functionality, it (now) has a built in calendar and, unlike Outlook, it's free, open source and respects your privacy. JohnFastmanJan 2017 • 9 agrees and 6 disagrees Disagree   Agree
    • Seems to be more secure than Microsoft alternatives and more easily updatable. Guest • Apr 2017 • 5 agrees and 4 disagrees Disagree   Agree
    • For me it is the only alternative to Outlook, if you want power of Outlook and open source there is just no other app. wookahn624Jun 2018 • 0 agrees and 1 disagrees Disagree   Agree
    • It is a really poor software, no featureas, it's complicated. Try to configure a signature with a logo and you will see.... Terrible!! Guest • Jun 2017 • 12 agrees and 23 disagrees Disagree   Agree

    Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku

    Thunderbird icon
  • Evolution

    Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions. Features E-mail retrieval with the POP and IMAP protocols and e-mail transmission with SMTP. Secure network connections encrypted with SSL, TLS and STARTTLS. E-mail encryption with GnuPG and S/MIME. E-mail filters.

    • Support for EWS allows me to connect to exchange and get all the benefits like contacts and calendar I wouldn't so easily get on Thunderbird. Also it nicely integrates with the built in Ubuntu calendar as well which is a big plus. Guest • Jul 2018 Disagree   Agree
    • Fast and User friendly. Light-weight and classic menus really give a touch of old classic office 2003. Easy integration of mails especially exchange mails without facing any bottlenecks. Guest • 15 days ago Disagree   Agree

    Free Open Source Linux BSD S/MIME GNOME OpenPGP

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  • Geary

    Geary is a lightweight email program designed around conversations and built for the GNOME desktop. It's designed to let you read your email quickly and effortlessly. Its interface is based on conversations, so you can easily read an entire discussion without having to click from message to message. Geary is written in Vala .

    Free Open Source Linux BSD GNOME

    Geary icon
  • Mutt

    Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various features to support mailing lists, including list-reply, active development community, POP3 support, IMAP support.

    • Powerful configuration is possible with mutt, and vim in the terminal. scholasticphilosopherMar 2018 • 0 agrees and 2 disagrees Disagree   Agree

    Free Open Source Mac Windows Linux Xfce

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  • Mailspring

    Mailspring is a desktop email client designed for macOS High Sierra, Windows 10 and Linux. With modern features like unified inbox, snoozing, templates, offline search, and support for Gmail labels, Mailspring will breathe life back into your tired inbox! Mailspring is free and supports all IMAP providers, including Gmail, Office 365 and iCloud. Mailspring does not support Exchange ActiveSync.

    Freemium $ $ $ Open Source Mac Windows Linux Arch Linux Fedora ... Ubuntu

    Mailspring icon
  • Sylpheed

    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 other Unix-like systems. Sylpheed uses GTK+ GUI toolkit. The newest version of Sylpheed works with GTK+ 2.4 or later (2.6 or later is recommended). Sylpheed is a free software distributed under the GNU GPL (the library part is GNU LGPL). You can freely use, modify and redistribute it under the license.

    Free Open Source Mac Windows Linux BSD PortableApps.com

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  • Kontact - KMail

    KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email. It uses KParts to embed the various applications (KMail, KAddressBook, Akregator, etc.) into the container application.

    Free Open Source Mac Windows Linux BSD

    No features added Add a feature

    Kontact - KMail icon
  • Hiri

    Fast, good looking email client. Lighter than MS Outlook with some unique and clever features. You can use Hiri to connect to Exchange, Office365, or a Microsoft email account (Outlook.com, Live, Hotmail). Other email providers, such as Gmail, Yahoo, etc are currently not supported. Basics: - Fully integrated calendar - Tasks - Contacts - Built for Exchange, Office 365 and Outlook.com - Uses Microsoft's own protocol - EWS.

    • Most of the clients listed do not have calendars or tasks. Hiri has it all and works really well with Office 365 kevkavJan 2017 • 1 agrees and 0 disagrees Disagree   Agree
    • I like how it helps our company to be more productive and focused on tasks. Th UI/UX is much better than Outlook aleksandarbibovskiJan 2017 Disagree   Agree

    Commercial $ $ $ Mac Windows Linux

    Hiri icon
  • Kontact

    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 KPart technology, existing applications are seamlessly integrated into one. The components of KDE Kontact are tailored to work well with each other. This results in features like intuitive drag-and-drop between appointment handling, task lists and contacts. KDE Kontact supports various groupware servers.

    Free Open Source Windows Linux

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  • Zimbra Desktop

    The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having them locally accessible when on the road. Zimbra Desktop aggregates information across accounts (Zimbra, Yahoo! Mail, Gmail, Hotmail, etc.) and social networks (Facebook, Digg, Twitter, etc.) to help make communicating & sharing information easier than ever.

    Free Personal Mac Windows Linux

    No features added Add a feature

    Zimbra Desktop icon
  • Trojitá

    Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides and is committed to be as interoperable as possible.

    Free Open Source Windows Linux

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  • Pantheon Mail

    Pantheon Mail is a free open source email client forked by the elementary OS community from Geary . Features Modern and straightforward interface Quick account setup Supports Gmail, Yahoo! Mail, Outlook.com, and popular IMAP servers (Dovecot, Cyrus, Zimbra, etc.

    Free Open Source Linux elementary OS

    Pantheon Mail icon
  • sup

    Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code insertion via a hook system, and more. If you're the type of person who treats email as an extension of your long-term memory, Sup is for you. Sup makes it easy to: Handle massive amounts of email. Mix email from different sources: mbox files and maildirs.

    Free Open Source Linux

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  • Kube

    Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access to all your mail, contacts, calendars, notes, todo's and more. With a strong focus on usability, the team works with designers and UX experts from the ground up, to build a product that is not only visually appealing but also a joy to use.

    Free Open Source Linux

    No features added Add a feature

    Kube icon
  • Maya

    Maya is a slim, lightweight, GCal-syncing GTK+ Calendar application written in Vala, specifically for elementary OS . Also looks and works great on other GTK+ desktops. In elementary OS, Maya is known as Calendar.

    Free Open Source Linux

    Maya icon
  • BORG Calendar

    BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc... The Task Tracker goes way beyond todo's and might better be called a project tracking system. BORG is basically meant to be a small self-contained Java application that you can run locally (i.e. without a network).

    Free Open Source Windows Linux

    No features added Add a feature

    BORG Calendar icon
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  • Ominder

    Keep track of all your Events with free SMS and Email notifications. Store and organize your Events and To-do on Ominder and never forget them again. Events include weather forecast for better planning. All Events and To-do include countdown and age timers for better management.

    Free Mac Windows Linux Android Windows Phone

    Ominder icon
  • Simple Mail

    Simple Mail is a mail client for Firefox. It allows you to get notified, read and write messages for multiple email accounts inside Firefox. Usage: Configure one or more accounts in Preferences, set account refresh time and get notified of new mail. When new mail arrives, Simple Mail shows new messages count in status bar. You can click Simple Mail icon to open received messages in a separate browser tab.

    Free Mac Windows Linux Firefox

    No features added Add a feature

    Simple Mail icon
  • Mulberry

    Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.

    Free Open Source Mac Windows Linux

    Mulberry icon
    • Discontinued The project is no longer developed. Last version, 4.0.8, released in February 2007, can be still downloaded from the official website.
  • FileOne

    FileOne is an organizer that combines and integrates your notes, documents, contacts, email, photo's/images, calendar and agenda with multimedia. It is an hybrid form of a note taking organizer with multimedia and email functionality. A desktop replacement for OneNote and EverNote with more functionality but much easier to use. It runs on all desktop versions of Windows, Linux Mint, Ubuntu and Mac OSX (Yosemite, El Capitan, Sierra).

    Commercial $ $ $ Mac Windows Linux

    FileOne icon
  • Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. Features: Webmail Calendar Addressbook IMAP, POP or Exchange WebSync SMTP/POP3/IMAP server Explore the WebAdmin features Versions for Linux, VMware, Plesk Easy install scripts for popular distributions Atmail focuses on improving the usability of email and designing high-performance system for SMB/ISP use.

    Commercial Linux Web

    Atmail Email Server icon
  • IBM Notes

    IBM Notes (formerly IBM Lotus Notes) is a desktop client for social business. This email software includes messaging, applications and social collaboration. IBM Notes features a clean, modern social user interface that provides activity streams, microblogging and social file sharing, directly from your Inbox.

    Commercial Mac Windows Linux

    No features added Add a feature

    IBM Notes icon
  • Columba

    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

    Free Open Source Mac Windows Linux BSD

    No features added Add a feature

    Columba icon
    • Discontinued The project is no longer developed. Last version, 1.4, released in March 2007, can be still downloaded from SourceForge.

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