B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
16.9%
16.9% -- email non delivery rate for Global email traffic (2025)
16.9% of emails sent daily never reach an inbox due to deliverability issues.
- Original research source not cited
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
16.9%
Unit
Percentage
Data Vintage
2025
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
hireroger.com
Primary
Tier C
https://www.hireroger.com/blogs/how-to-improve-email-deliverability ↗
Source Article
How to Improve Email Deliverability and Land in the Inbox
How to Improve Email Deliverability and Land in the Inbox
December 7, 2025
Getting your emails to land in the inbox isn't a matter of luck—it's a science. To consistently improve email deliverability, you need the right combination of technical setup, clean contact lists, and smart sending practices…
Original Research
hireroger.com
· Original study ↗
Methodology
Cited aggregate benchmark; original source not named
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Global email traffic: 16.9% email non delivery rate. Source: hireroger.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/emails-never-reaching-inbox-16-9
HTML Embed
<blockquote cite="https://lighthousedata.io/data/emails-never-reaching-inbox-16-9" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>16.9%</strong> -- email non delivery rate for Global email traffic<br><small>Source: hireroger.com (2025) · <a href="https://lighthousedata.io/data/emails-never-reaching-inbox-16-9" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.