Running an email service means running servers around the clock. We take responsibility for the environmental impact that comes with that.
Cirrux is hosted at Exoscale's DE-FRA1 data center in Frankfurt, Germany. This facility runs on 100% renewable energy, meaning every email you send and receive is powered by clean electricity.
We commit 1.5% of our revenue to permanently remove CO₂ from the atmosphere through Stripe Climate. This funds a portfolio of carbon removal projects, from direct air capture to enhanced weathering, vetted by scientific experts for real, lasting impact.
Email is infrastructure you use every day. Choosing where to host it is a decision that compounds over time. We believe that building a sustainable business means taking the environmental cost seriously — not just the financial one.