Yep. We are on our third, and will soon be migrating to a fourth data server (each offering increased storage capacity). The data server is always named \\Orion. New server is named \\Orion-new and after transfer, the old one is renamed and the new one called \\Orion. Saves a lot of faffing about.

This is advice to anyone running a network install of Pegasus Mail...

The STATE.PMJ file stores paths in UNC format.  Should you find the need to relocate Pegasus Mail to a different server you will find that all folder attached filter sets will be broken.

I have also discovered that when you delete a folder to which you had attached a filter set, the associated entry remains in STATE.PMJ.

I have extensive filtering in place and assume a rebuild of STATE.PMJ would remove all references to the existing filters so I think I must identify them first and then figure out how best to either fix STATE.PMJ manually or rebuild it then reassign all of the filters.