6
On one of my sites that people actually use PMs, it seems to work fine deleting old PMs, using the latest XOOPS and latest pm module, I will just mention that as posted in another thread, I had deleted the priv_messages table and lost any existing Pms in the process, then replaced the priv_messages table with a "clean" empty priv_messages table from another 2.3.1 site, that has little member activity.
I deleted the whole existing priv_messages table becuase it was the only way I thought I could get PMs working at all, I am no expert with databases obviously lol, but it worked.
Yes I to cannot delete PMs on Xoops.org.
Anyway just thought I would mention this.
Edit: should add that I did have Lord_Venoms excellent PM module installed at one time in the past, it seemed to leave entries in the priv_messages table that didn't allow the new PM module to work, JAVesey can tell you more about that.
;o)