The author compares various email clients: MS Outlook, AppleMail, K Mail, Thunderbird, Evolution and Claws.
Among the free email software clients, he recommends Claws.
According to him Claws is fast (having a light footprint), easily configurable and has a better user interface than the rest.
Here is the link to Claws Mail. The tag line is 'user-friendly, light-weight, and fast email client'.
Please see the screen-shot below:

Questions: Does it provide for email encryption?
Joseph Ponnoly

It does, via plugins (PGP/Mime, PGP/Inline and S/MIME):
ReplyDeletehttp://www.claws-mail.org/plugins.php?branch=STD