B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
0.1%
0.1% -- spam complaint rate for B2B email lists (2023)
Spam complaint rates climbing above 0.1% indicate a list health problem for cold email lists.
- Represents a warning threshold benchmark indicating list health problems rather than an empirical average
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
0.1%
Unit
Percentage
Data Vintage
2023
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
90
Independence
30
Methodology
45
Freshness
82
Source
Stackmatix
Primary
Tier A
https://stackmatix.com/blog/email-list-building-b2b-startups ↗
Source Article
Email List Building for B2B Startups: Strategies That Scale
Email List Building for B2B Startups: Strategies That Scale
A purchased list of 50,000 contacts sounds like a shortcut until you see the deliverability destruction it causes — hard bounces that tank your sender reputation, spam trap hits that get your domain blacklisted, and contacts so irrelevant t…
Original Research
Stackmatix
· Original study ↗
Methodology
Threshold for spam complaint rates indicating list health problems.
Methodology documented
Segmentation
Channelcommon_crawl
Cite this stat
Plain Text
B2B email lists: 0.1% spam complaint rate. Source: Stackmatix (2023). Via Lighthouse Intelligence -- https://lighthousedata.io/data/b2b-email-list-spam-complaint-rate-threshold
HTML Embed
<blockquote cite="https://lighthousedata.io/data/b2b-email-list-spam-complaint-rate-threshold" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>0.1%</strong> -- spam complaint rate for B2B email lists<br><small>Source: Stackmatix (2023) · <a href="https://lighthousedata.io/data/b2b-email-list-spam-complaint-rate-threshold" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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