About The Inbox Ledger
The Inbox Ledger is an independent publication covering cold email, email deliverability, and B2B outbound — written from the operator side.
We started this publication because almost everything written about cold email and deliverability online is one of two things: marketing copy from the tool you are about to buy, or generic content written by people who have never had to fix an SPF record at 2 AM.
That is not what you get here. Every comparison is tested. Every deliverability deep-dive comes out of real campaigns and real audits. When we recommend a tool, we explain why — and when we use affiliate links, we disclose them clearly.
Who runs this
The Inbox Ledger is led by Kunal Arora, founder of ColdPumper and LeadPumper, with 10+ years operating cold email infrastructure (PMTA, Hestia, M365 sending, dedicated IP warmup) and running deliverability audits for B2B clients.
How we make money
Display advertising and affiliate partnerships with companies we have actually used and recommend. We never accept paid placements, sponsored posts disguised as editorial, or product reviews in exchange for compensation. See our affiliate disclosure and editorial policy for the full details.