-Tuesday night around midnight my RAQ4r decided to max out the CPU rendering SMTP useless and web pretty muchthe same. Every since then I have had to pretty muchreboot the server ever hour... After that the server usually takes an hour for the CPU to ramp up to acritical state.
I had a similar problem on a raq2 -- IIRC it turned out to be "savemail panic" because admin's quota was full and cobalt got in a loop trying to send error emails to admin.tail -f /var/log/maillog to see if this is what's happening. HTH, Julian