B
Evidence Grade B
Graded
under review
Safe to Cite
Current
121
121 -- daily emails sent and received for business professionals (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
121
Unit
Count
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
Radicati Group
Primary
Tier C
https://billzipp.com/blog/page/3/ ↗
Source Article
Blog Articles
Original Research
Radicati Group
· Original study ↗
Methodology
Cited from the Radicati Group's Email Statistics Report (publisher name truncated as 'Radicoti' in source excerpt); measures average daily business email volume, commonly used as an email-channel/inbox-competition benchmark
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
business professionals: 121 daily emails sent and received. Source: Radicati Group (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/business-professionals-daily-email-volume
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<blockquote cite="https://lighthousedata.io/data/business-professionals-daily-email-volume" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>121</strong> -- daily emails sent and received for business professionals<br><small>Source: Radicati Group (2026) · <a href="https://lighthousedata.io/data/business-professionals-daily-email-volume" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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