B
Evidence Grade B
Graded
under review
Safe to Cite
Current
40%
40% -- share of cold email senders completing structured warm up for cold email senders (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
40%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Email industry surveys (unnamed)
Primary
Tier C
https://bouncezero.io/blog/email-domain-warm-up-and-verification ↗
Source Article
Email Domain Warm-Up + Verification - The Two Things Cold Emailers Skip (At Their Cost)
There's a pattern we see constantly in BounceZero's verification data: a new customer signs up in a panic, uploads a list, and mentions in support chat that their brand-new domain just got blacklisted - three weeks into their first campaign. When we dig in, the story is almost always identical. They…
Original Research
Email industry surveys (unnamed)
· Original study ↗
Methodology
Cited as 'email industry surveys'; specific survey not named
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
cold email senders: 40% share of cold email senders completing structured warm up. Source: Email industry surveys (unnamed) (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/cold-email-warmup-completion-rate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/cold-email-warmup-completion-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>40%</strong> -- share of cold email senders completing structured warm up for cold email senders<br><small>Source: Email industry surveys (unnamed) (2026) · <a href="https://lighthousedata.io/data/cold-email-warmup-completion-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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