Built by people who got burned by spam filters
SendOut started as an internal tool. We were running cold email campaigns and losing 40% of our emails to spam — even with perfect SPF/DKIM/DMARC. The problem was domain reputation, and there wasn't a good automated solution.
In 2023, we were scaling a B2B SaaS go-to-market motion using cold outbound. We had great lists, compelling copy, and airtight authentication records. But our inbox rates hovered around 54%. The problem wasn't the email — it was that our domains were cold.
We tried every tool on the market. Some were expensive and opaque. Others were manual spreadsheet nightmares. None gave us what we actually needed: an automated system that warmed our domains intelligently, monitored reputation in real time, and let us run campaigns from the same interface.
So we built it ourselves. After six months of internal use — getting our own inbox rates above 96% — we decided to open it up. SendOut is the tool we wish had existed three years ago.
What we believe
Outcome-focused
We measure success by inbox placement rates, not feature counts. Every decision maps back to one question: does this help our users land emails?
Transparently honest
No dark patterns, no hidden limits, no marketing fluff. If a feature has a limitation, we tell you upfront. Pricing is public and doesn't change when you're on a call.
Practitioners first
The team runs cold email campaigns internally. We dogfood every feature before shipping it. If it doesn't work for us, it doesn't ship.
The team
Alex Chen
Co-founder & CEO
Previously ran outbound at a B2B SaaS. Spent two years manually managing domain warming before deciding there had to be a better way.
Jordan Reeves
Co-founder & CTO
10 years in distributed systems at scale. Built the async processing engine that powers SendOut's warming queue.
Sam Okafor
Head of Deliverability
Former email deliverability consultant. Has recovered over 300 blacklisted domains and knows every trick ESP spam filters use.
Want to work together?
We're always interested in talking to cold email practitioners, deliverability experts, and people who want to build the future of outbound.