Topic · B2B outbound
Cold email deliverability
If 60% of emails land in spam, the sequence doesn't matter.
DefinitionB2B outbound
What is cold email deliverability?
Cold email deliverability is the percentage of sent cold emails that land in the recipient's primary inbox rather than spam, promotions, or quarantine. Deliverability depends on sender domain reputation, SPF/DKIM/DMARC alignment, content patterns (avoiding spam triggers), warmup history, and recipient engagement signals.
Services that operate this topic
How Xpand Media runs it
Industries that care about this
Sector relevance
- VerticalB2B SaaSB2B SaaS in 2026 buys through ChatGPT and Perplexity before it ever sees Google. If your brand isn't cited in AI answers, demos don't book.
- VerticalAI-native companiesAI-native companies need GEO that names the model, the use case, and the developer adoption signal. Generic positioning loses to specific technical-buyer hooks.
- VerticalProfessional servicesProfessional services in 2026 are bought through AI-engine reputation. The agency, consultancy, or firm that's cited as 'the expert' wins discovery before any pitch is built.
FAQ
Common questions about cold email deliverability
What is a healthy cold email open rate?
55-75% for properly warmed B2B with clean lists. Below 45% suggests deliverability problems, not just subject line issues.
How long does domain warmup take?
Three to six weeks for a fresh domain. Tools like Instantly, Smartlead, and Warmly automate the daily cadence. Starting from cold without warmup almost guarantees spam folder landing.
Should we use a sub-domain for outbound?
Yes. Sending cold from the primary corporate domain risks the entire company's transactional and customer email reputation. Use mail.brand.com or out.brand.com.
Are sending tools like Instantly safe?
Yes when used with proper warmup, clean lists, and modest daily volume. The risk is human: spamming uninterested recipients with broken personalization tanks reputation fast.
How does reply rate correlate with deliverability?
Strongly. Reply signals to inbox providers that the recipient finds the mail valuable, which improves future placement. Reply-eliciting first messages (1-2 sentences, single question) outperform pitch-style.
Talk to us