Best open source webmail clients


There are too many webmail clients are available on web.

Choosing best out of them is quit difficult task for any one.

After exploring tens of webmail clients, I will vote for following webmail client as top 3  webmail clients:

  • Roundcube: I would rate it as the best and easy to install. It has rich text editor and clent side filtering support. Also it hase good web interface.


  • Zimbra: Not explored much about, but based on futures its quite a popular webmail


  • SquirrelMail: Its basic webmail with basic web interface. There is no rich text editor support. There are lot of plugins available for SquirrelMail. 


  • RainLoop: Recently I seen this webmail client so thought to share. UI is good in RailLoop. I am not tested it but when I walk through installation procedure its looking straight forward and easy.
RainLoop WebMail

RainLoop WebMail

All above webmails are open source.

One comment on “Best open source webmail clients

  1. Zimbra is a complete package with SMTP, IMAP, POP3 servers + WebUI.

    Whereas, Roundcube, Squirrelmail, RainLoop are web applications that provide a WebUI only. They connect to a separately installed SMTP, IMAP, POP3 servers.

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