5 Free Microsoft outlook alternative Open Source

Most of us prefer wants to go with an email client, who offers a bunch of advanced features, more integration options, and, if you ask most of the people, they would probably pick Microsoft Outlook, and the reason is pretty obvious. When it comes to features and integration then there is nothing like Microsoft Outlook, from integrating with Microsoft Office to sharing contacts ,you can do it all with Outlook.

MS Outlook Alternative

There is hardly any doubt that Outlook is the most popular and widely desktop email client, but as you know Microsoft services don’t come for free, and this is where other alternatives come in, people nowadays are looking for free desktop clients. Therefore, based on this topic, we are going to share the best top 5 free alternatives free Microsoft Outlook alternatives.

#1. Mozilla Thunderbird

While we are on this topic of the free alternatives open source email client, then you gotta mention Mozilla Thunderbird, it is one of the most popular used free email clients. Another great feature of the Mozilla Thunderbird is that it’s cross-platform, so whether you are a Windows, Linux or Mac users, you will not have any issue using Thunderbird on your computer.

Mozilla Thunder Bird

Mozilla’s email client like Outlook offers like POP, SMTP accounts, etc. Furthermore, you can also add extensions like Gmail, RSS feed, etc. In addition to that, if you want, you also add themes to make it look more elegant and beautiful.

#2. Opera Mail

Opera Mail Client

When it comes to browsers, then there is hardly anyone who haven’t heard or used Opera’s browsers. The company has also launched its first email Client product, apparently, this feature was included in their browsers itself, but that’s in the past now. If you are looking for a free open source desktop email client, which is lightweight and provides more control, then you are gonna love using Opera Mail. Users can also add themes, templates, import RSS feed, use multiple POP, IMAP accounts, furthermore, for security, it also includes spam protection. Overall, it Opera Mail is a good alternative for Outlook.

#3. Claws Mail

People nowadays wants to have a free Email client which is highly customization. So, if you are one of them, then Claws Mail is one of the best email clients that you can get. However, Claws Mail is for those who are a kind of experienced users. One of the best features of the Claws Mail email client is its lighting fast startup speed, and comparing to other email clients there is no other faster than Claws Mail.

 Claws Mail

Now, let’s come to the UI, if you are used to using Outlook or Live Mail, then at first, you might not like the interface, however, you can also customize the layout using themes, and add a number of plugins.

#4. Zimbra

If you are looking for a free open source email client, which offers identical features of Outlook, then, we recommend you to check out the Zimbra Desktop email client. From synchronizing email, contacts to calendars, you will be able to do it all. When it comes to email, Zimbra supports Yahoo, Gmail, Hotmail, IMAP, & POP accounts.


In addition to that, you can also get connected to Twitter, Facebook within a click of a button. Overall, Zimbra is one of the feature-loaded free email client available on the internet. In addition, for those who wants to customize the layout, then you can also take advantage of various themes that Zimbra offers.

#5. eM Client

If you are a windows users, and you are in the hunt for a free alternative to Outlook, then eM Client is the one you should get. Because it is fully optimized to run on Windows XP, 7, 8 machines.

eM Client

One of the best features of the eM Client is the option of synchronizing emails of Yahoo, Gmail, Hotmail, not only this, there is also an integrated chat app, so, you don’t use any kind of extra third party app to do chatting, in addition to that, you can also share contacts of Gmail, Hotmail, Yahoo, etc, with other users.

Final thoughts

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