B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
20%
20% -- email bounce rate blocklist threshold for email senders (2022-05)
If 20% of emails bounce, there is a very high probability of being listed on blocklists.
- Attributed generally to unnamed 'studies'
- Threshold mentioned as leading to very high probability of blocklisting
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
20%
Unit
Percentage
Data Vintage
2022-05
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
postboxservices.com
Primary
Tier B
https://postboxservices.com/blogs/post/deliverability-interviews-radek-kaczynski-from-bouncer ↗
Source Article
Deliverability Interviews - Radek Kaczyński from Bouncer
Deliverability Interviews - Radek Kaczyński from Bouncer
Interview 6: This is our sixth interview in the deliverability interview series. In this interview we spoke to Radek Kaczyński from Bouncer.
Radek is a believer in the possibility of improving Human to Human email communication. And thus since…
Original Research
postboxservices.com
· Original study ↗
Methodology
Expert interview statement citing unnamed studies ('Studies show...'); no methodology disclosed. States that a 20% bounce rate carries very high probability of blocklisting.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email senders: 20% email bounce rate blocklist threshold. Source: postboxservices.com (2022-05). Via Lighthouse Intelligence -- https://lighthousedata.io/data/bounce-rate-20-percent-blocklist-risk
HTML Embed
<blockquote cite="https://lighthousedata.io/data/bounce-rate-20-percent-blocklist-risk" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20%</strong> -- email bounce rate blocklist threshold for email senders<br><small>Source: postboxservices.com (2022-05) · <a href="https://lighthousedata.io/data/bounce-rate-20-percent-blocklist-risk" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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