How many queues can be used?

Hi to the list,

I gonna use a 3.4.4 release + mysql on a linux box for my trouble
ticketing activity. I will need a lot of queues ( one per customer ) + a
’global’ one. The ‘customers’ group will be a viewer of the global
queue, each member will be notified by mail when a global issue will be

Is there any known limitation regarding the number of queues created and
used in RT ? Any piece of advise on the subject will be welcome.

Best Regards & Merry Christmas