> Many of the queues were multi-producer, but all queues were single-consumer (CPUs were pricey at the time - our servers were all Pentiums and Pentium Pros), w

> Many of the queues were multi-producer, but all queues were single-consumer (CPUs were pricey at the time - our servers were all Pentiums and Pentium Pros), which simplified things a lot. Oh good, I was worried about what would have happened if a rogue server accidentally hit "reply all"