B
Evidence Grade B
Graded
under review
Safe to Cite
Current
28%
28% -- share of workweek spent on email inbox management for workers (email inbox management) (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
28%
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
35
Freshness
95
Source
yesware.com
Primary
Tier B
https://www.yesware.com/blog/email-inbox-management/ ↗
Source Article
Email Inbox Management Guide: Essential Strategies for Sales Success
Original Research
yesware.com
· Original study ↗
Methodology
Attributed only to 'some studies' in the Yesware blog; widely matches the well-known McKinsey estimate that email consumes ~28% of the workweek. Upper-bound figure ('up to').
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
workers (email inbox management): 28% share of workweek spent on email inbox management. Source: yesware.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-management-share-of-workweek
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-management-share-of-workweek" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>28%</strong> -- share of workweek spent on email inbox management for workers (email inbox management)<br><small>Source: yesware.com (2026) · <a href="https://lighthousedata.io/data/email-management-share-of-workweek" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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