I've tested public folders in Pegasus Mail using Ubuntu with Wine but I've only used the mapped drive letter.  I suspect you'll have to use drive letter mapping to get this to work.

Hi firstly thanks for a great program, I was wondering if it is possible to use public folders in pmail (run using wine in ubuntu)? I store some mail in public folders stored in a windows share of a NAS. it is possible to access the share from ubuntu using smb://.... but this doesn't work when setting up the public folder in pegasus.