B
Evidence Grade B
Graded
under review
Safe to Cite
Current
24%
24% -- response rate for emails longer than 200 words (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
24%
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
95
Source Trust
50
Citation Chain
20
Independence
30
Methodology
45
Freshness
86
Source
Boomerang
Primary
Tier A
https://salesso.com/blog/long-should-a-cold-email-be/ ↗
Source Article
How Long Should a Cold Email Be? Data-Backed Answer - Sales So
How Long Should a Cold Email Be? The Data-Backed Answer That Actually Works
- Protected_User_4eaaaa7b
- Views : 28,543
Table of Contents
The delete button is just one click away.
Your cold email has about 3 seconds to grab attention before it gets tossed into the digital trash bin. And here’s the th…
Original Research
Boomerang
· Original study ↗
Methodology
Research from Boomerang
Methodology documented
Segmentation
Channelcommon_crawl
Cite this stat
Plain Text
emails longer than 200 words: 24% response rate. Source: Boomerang (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/cold-email-response-rate-24
HTML Embed
<blockquote cite="https://lighthousedata.io/data/cold-email-response-rate-24" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>24%</strong> -- response rate for emails longer than 200 words<br><small>Source: Boomerang (2026) · <a href="https://lighthousedata.io/data/cold-email-response-rate-24" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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