WHY WE USE OUR OWN HARDWARE AT FASTMAIL

Summary from the TLDR Web Dev newsletter

Fastmail uses its own hardware for email services because it allows for cost optimization and long-term planning over the dynamic scaling offered by cloud services. This approach allows for more efficient hardware usage, where equipment can be used for 5-10 years. Fastmail recently upgraded to a ZFS-based NVMe SSD system, leading to big performance and space savings through compression while eliminating the complexities of traditional RAID setups.