5 open source webmail clients for browser-based email

1

Gmail

Gmail has enjoyed phenomenal success, and regardless of which study you choose to look at for exact numbers, there's no doubt that Gmail is towards the top of the pack when it comes to market share. For certain circles, Gmail has become synonymous with email, or at least with webmail. Many appreciate its clean interface and the simple ability to access their inbox from anywhere.

#Email #Email Clients #Enterprise Communication 3 user reviews

2

Nextcloud

The mail plugin doesn't provide a mail server. It's just a webmail client, but it connects to a variety of mail systems. If you run Nextcloud on a server you have sudo or root access to, it's possible to setup Postfix or a similar mail server, and use the Nextcloud mail app as the front end. Best of all, Nextcloud devs have refrained from reinventing the wheel, and use libraries from the popular Horde mail client.

#Cloud Storage #File Sharing #Encrypted Cloud Storage 283 social mentions

3

Horde

More than just a mail client, Horde is full-fledged enterprise-ready groupware. The Horde suite is browser based, and includes web apps for reading, sending and organizing email, managing and sharing calendars, contacts, tasks, and notes. In addition, the Horde project provides a PHP framework with libraries and apps for building out a customized working environment.

#Email #Email Clients #Email Management

4

Roundcube

I really like Horde's mobile UI, and the mail client was pretty easy to install separate from the rest of it. SquirrelMail and RoundCube are challenging to use on a mobile device. RoundCube has a supposed mobile plugin but I could not get it to work.

#Email #Email Clients #SMTP Server 16 social mentions

5

Zimbra

Zimbra is a well-maintained project that has been hosted at a number of different corporate entities through the years, and was acquired by Synacore in 2016. It features most of the things you've come to expect in a modern webmail client, from webmail to folders to contact lists to a number of pluggable extensions, and generally works very well. I have to admit that I'm most familiar with an older version of Zimbra, which felt at times slow and clunky, especially on mobile, but it appears that more recent versions have overcome these issues and provide a snappy, clean interface regardless of the device you are using. A desktop client is also available for those who prefer a more native experience. For more on Zimbra, see this article from Zimbra's Olivier Thierry, who shares a good deal more about Zimbra's role in the open source community.

#Email #SMTP Server #Email Clients

6

Rainloop

Next up is Rainloop. Rainloop is a very modern entry into the webmail arena, and its interface is definitely closer to what you might expect if you're used to Gmail or another commercial email client. It comes with most features you've come to expect, including email address autocompletion, drag-and-drop and keyboard interfaces, filtering support, and many others, and it can easily be extended with additional plugins. It integrates with other online accounts like Facebook, Twitter, Google, and Dropbox for a more connected experience, and it also renders HTML emails very well compared to some other clients I've used, which can struggle with complex markup.

#Email #Email Clients #Email Management

7

Mailspring

Mailspring supports multiple accounts, read receipts, translations, undo send, and other popular email client features.

#Email #Email Clients #Calendar 25 social mentions

8

Cypht

Cypht is a lightweight email client and news reader written in PHP and JavaScript and licensed under GPL v2. It's got a unique design aimed at combining several feeds (disparate email addresses and RSS feeds) into one.

#Email #Email Clients #Email Management 4 social mentions

9

Mailpile

Mailpile is an HTML 5 email client, written in Python, and available under the AGPL. Mailpile focuses on speed and privacy.

#Email #Email Clients #Email Management

10

AfterLogic Webmail Lite

WebMail Lite is a modern but minimalist option, licensed under the AGPL and written mostly in PHP. It's feature-rich (it can even integrate OpenGPG) but simple to install.

#Email #Email Clients #Email Management

11

Squirrelmail

I used to use Squirrelmail, and then moved on to Roundcube. The problem I've had with these has mainly been that it uses the old folder paradigm (thus also requiring an external system for filtering rules). Sieve scripts are fine for neckbeards but definitely not the sort of experience that most users are going to want. I've not really seen anything yet that uses labels & views with integrated rule policies.

#Self-hosted Email #Enterprise Communication #Email 3 social mentions