Claws Mail is a free opensource lightweight, user friendly and fast email client for Linux. Claws Mail is a quick response email client with easy configuration, intuitive operation and abundant features, extensibility, robustness and stability.

Claws Mail is a very light weight, easy to use email client that's not only popular, but it works in an incredible number of environments. The current "stable" release is version 3.7.2, which oddly enough, doesn't appear in most distros.

When other mailers aren’t doing the trick, it’s time to break out Claws: An extremely configurable and extensible GUI mailer that gives you all the control you’d ever want over your mail without sacrificing ease of use.

In Depth: Evolution vs Thunderbird vs KMail vs Claws Mail vs Zimbra

I have used so many email clients over the years. For the last few years my go-to email client has been Thunderbird. Lately, however, I have really been taken in by Claws Mail.

In 2009 I had written about my experience with Claws Mail. After almost a year with Claws and a few minor releases, I thought it useful to share my experiences after a longer period of time.

Here's my problem. I need a calendar app that rudely beeps to tell me when to go to meetings and such. In Ubuntu, that means the Evolution mail client, which has an extensive calendar function, or so I'm told. But I don't run Evolution. I use Thunderbird to manage my mail, and Thunderbird doesn't have a calendar function ... or does it?

I would argue that Claws Mail is one of the most flexible email clients available. To illustrate that I want to introduce you to a feature that I find a "must use" for my email needs. That feature? Templates."

Continuing the recent trend of posts about email client and personal information manager (PIM) software, this post will look at the Lightning extension for Thunderbird.