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At Sendlane, we know trust is earned, especially when it comes to uptime and deliverability. That's why we’re investing in the most significant infrastructure upgrade in our history. Phase one is complete, and we’re entering a new era of reliability, scalability, and preparing for a data driven future.This post gives you a transparent look at what’s changing and how it strengthens your business.
Resilient, Multi-Region Cloud
Sendlane was originally built on a data center that supported the needs of our customer base at the time. But as customer demand and marketing sophistication grew, we needed an infrastructure that could scale with confidence.We’re now moving to a modern architecture with redundant systems, faster recovery, and elastic scaling. This includes:
- Redundancy across multiple zones and regions for higher uptime.
- Elastic performance that grows with your traffic.
- Immediate disaster recovery if issues occur.
Daily Stress Tests: Building for Peak Before the Peak
We’re not waiting until November to find out if we’re ready. Our new staging environment is built to simulate Black Friday-level sending every day. Here’s what that looks like:
- Real campaigns run daily at peak volumes (millions of emails per morning).
- Dynamic scaling to spin up and down automatically.
- Iterative loops to build, measure, learn, and optimize.
This isn’t just a one-time stress test. It’s continuous pressure-testing that ensures peak performance every day of the year.
When Black Friday 2025 hits, we’ll be ready for you.
What It Means for You
Whether you send 1,000 emails or 100 million, this foundation benefits your brand:
- Greater sending confidence, even during peak periods.
- Improved deliverability via owned IPs and smarter routing.
- More predictable performance from elastic, cloud-based infrastructure.
And this is just Phase 1. In the months ahead, we’ll continue delivering even more reliability and performance.
Stay in the Loop
Questions about what this means for your brand?
Contact your Client Success Manager or through chat support on our site.
