The Emaissary blog

Fewer, better emails to the right people. Practical writing on deliverability, personalization, and staying in control of your outbound.

Positioning

AI SDR vs. approval-first outreach: which protects your reputation?

Autonomous AI SDRs send at volume from their own infrastructure. Approval-first outreach keeps a human in the loop. Here's how each affects deliverability and reply rates.

Jul 17, 2026 · 6 min read
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Deliverability

Cold email deliverability in 2026: the sender rules, explained

Google, Yahoo, and Microsoft tightened bulk-sender rules. What SPF, DKIM, DMARC, spam-rate thresholds, and one-click unsubscribe mean when you're doing your own outbound.

Jul 15, 2026 · 8 min read
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Playbook

How to personalize cold email at scale without sounding like a bot

Real personalization is about relevance and timing, not {{first_name}}. A practical framework for researching prospects and writing emails that earn replies.

Jul 11, 2026 · 7 min read
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