B
Evidence Grade B
Safe to Cite
Dated
2%
2% -- email client market share for Outlook.com (2019-10)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
2%
Unit
Percentage
Data Vintage
2019-10
Entity
Sample Size
927,000,000
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
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Sources (2)
emailclientmarketshare.com
Primary
Tier A
https://emailclientmarketshare.com/ ↗
Source Article
Email Client Market Share
#1 Apple iPhone 32% +5.4
#2 Gmail 27% -3.41
#3 Outlook 10% -0.7
#4 Apple Mail 9% +1.55
#5 Yahoo! Mail 6% +0.12
#6 Apple iPad 5% -2.48
#7 Google Android 3% -0.15
#8 Outlook.com 2% -0.09
#9 Samsung Mail 1% -0.13
#10 Thunderbird 0% -0.06
Email client market share
Email client usage worldwide, collected…
Also cited by
emailclientmarketshare.com
https://web.archive.org/web/20191205155214id_/http://emailclientmarketshare.com/
2026-08-30
Original Research
emailclientmarketshare.com
· Original study ↗
Methodology
Collected from 927 million email opens worldwide by Litmus Email Analytics.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Outlook.com: 2% email client market share. Source: emailclientmarketshare.com (2019-10). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-client-market-share-outlook-com
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-client-market-share-outlook-com" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>2%</strong> -- email client market share for Outlook.com<br><small>Source: emailclientmarketshare.com (2019-10) · <a href="https://lighthousedata.io/data/email-client-market-share-outlook-com" 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.