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Outbound & deliverability, without the fluff

Practical guides to cold email deliverability, email authentication, and B2B outbound strategy — written by an operator, grounded in live data from 130 real companies. No gated PDFs, no fluff.

The State of B2B Outbound Deliverability 2026 →
We ran live SPF/DKIM/DMARC checks on 130 B2B companies. Half are quietly leaking. The full data and what it means for your outbound.
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Start here

Why your cold email lands in spam
The real causes, ranked — and a 60-second way to check your own domain.
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The 2026 deliverability checklist
Everything to get right — domain, auth, warmup, hygiene — before you scale sending.
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Email authentication

SPF, DKIM & DMARC, explained
Plain-English guide to the three records that decide whether you reach the inbox.
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Fixing DMARC p=none
Why “we have DMARC” isn’t enough, and the staged path to real enforcement.
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How to set up DKIM
Step-by-step for Google Workspace, Microsoft 365, and sending tools — plus how to verify it.
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Sending & reputation

How many cold emails per day?
The honest answer, per-inbox vs per-domain limits, and a safe ramp schedule.
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Email warmup, explained
What it actually does, what it can’t fix, and the right order of operations.
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Diagnosis & strategy

Opens but no replies
The deliverability reason your dashboard hides — and how to tell it apart from copy.
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Managed outbound vs AI SDR vs hiring
An honest three-way comparison on cost, ramp time, control, and who carries the risk.
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Qualified conversations vs meetings
Why one metric predicts pipeline and the other gets gamed.
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The AI-SDR reckoning

Are AI SDRs worth it?
Why the “autonomous AI SDR” category lost the market’s trust in 2026 — and what to look for instead.
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Why AI SDRs burn your domain
The mechanism behind torched sender reputation — and the deliverability-first alternative.
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Outbound you can audit
Why a public refund ledger + reply-based metric is the only honest construction in outbound.
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Check your own domain — free, 60 seconds

Type your domain and get an instant A–F grade on SPF, DKIM, DMARC, and MX. No signup.

Run the Outbound Reality Check →