Just a simple question guys. I have set up the PM settings as illustrated on screen1, however I am still able to send PMs to more than just one user, as you can see on screen2. Is this how it’s supposed to be or have I missed something? I would just like users only to be able to PM one at a time 
How are you seeing the multiple? with a normal user account or your sp admin account? keep in mind, that limitation will not apply to sp admins…
I am seeing it with a normal user. Just registered a bunch of normal users and I can send PM to them all…from a normal user. Not sure what is going on, it clearly states “Maximum of 1 Recipients Allowed”, so it should be good. Do you have any other idea?
well, looks like something got knocked and its indeed broken (looks like quite a few versions ago)… simple fix and will have it corrected in the next version of the private messaging plugin…