Thanks, I'll go and ask them
[EDIT]
For future reference
It was not an Unreal setting, it was Anope, the nickserv conf file has modesonid = "+R", a very odd place to put a mode set by Operserv
[14:37] -NickServ- Password accepted - you are now recognized.
[14:37] * OperServ sets mode: +hrR"