Using XFCE. I am trying to provide a friend running a business with a customer database (less than 500) that integrates with a calendar and automates E-mail announcemets. I have tried the KDE Plasma suite using Kalendar, Korganizer and Kmail and have given up from extreme frustration. I have been using Thunderbird for around 20 years and truly hate Kmail. Others who have tried to use Thunderbird within the Plasma suite report no succcess. Is there something similar available for XFCE or any other lightweight GUI?
Thanks in advance.