I use Thunderbird for my e-mail client, and MailWasher Pro will start it either after "Wash Mail" or hitting the "Thunderbird" button at the top of the page. However, when I've hit the Quick Reply tab at the bottom, it tries to start MS Outlook, which I do not have configured and refuse to use. My suggestion is to have the Quick Reply button start the same e-mail client that appears on the button at the top.
Thanks for your attention. MailWasher is a great product. Keep up the good work.
Alan