Incredimail has frequently been criticised on this site because of all the advertising rubbish it dumps on your computer.
My own preference is to stick with a 'standard' email client (such as Outlook, Outlook Express, Thunderbird or Windows Mail) and to use it with a free email service which supports such clients (as well as offering web-based access).
I actually use Outlook Express (simply because that's already on my computer) but I recognise that most people rate Thunderbird as a far superior email client:
http://www.mozillames...om/en-GB/thunderbird/
I combine that with Gawab's excellent free email service, which is explained in my post (and link) here:
http://www.theanswerb.../Question1018550.html
Chris