Good news for Thunderbird! SoftMaker, a company best known for its SoftMaker Office suite, announced recently that it plans to include the Thunderbird email client into the 2016 version of the office suite.
In addition to that, it announced that it will provide the Thunderbird team with an experienced developer on a full-time basis to work on the email client and Lightning calendar.
SoftMaker Office (Licensed) with Thunderbird - http://www.softmaker...oftmaker-office
FreeOffice 2016 - http://www.freeoffice.com/en/