361.6 billion emails are sent worldwide each day. Fifteen percent open within the first hour. Data on adoption rates, automation use, and deliverability challenges show how organizations and recipients interact with email newsletters.
Key Takeaways
- 42% of global respondents used email for work-related purposes at least once per day (2022)
- 41% of B2B marketers use email to nurture leads (2022) — share using email for lead nurturing
- 19% of marketers use webhooks/event streams to trigger email sends (2023) — share using event-driven triggering
- 44% of consumers said they are more likely to purchase from a brand that sends them personalized emails (2018)
- 47% of organizations use email marketing automation (2023)
- 1.6 trillion emails are sent per day in 2023
- Email marketing software market is projected to reach $3.9 billion by 2030 (CAGR 7.4% from 2023 to 2030)
- Marketing automation software market is projected to reach $13.6 billion by 2028 (CAGR 12.7% from 2021 to 2028)
- Email marketing market is projected to reach $17.1 billion by 2032 (CAGR 8.5% from 2024 to 2032)
- Email marketing is reported to cost about $0.02 per email sent (2019)
- 34% of marketers say email delivers the highest ROI among marketing channels (2022)
- 7% of global adults report receiving unwanted marketing emails weekly (2022)
- 27% of email marketers say deliverability issues are a major challenge (2023) — percent citing deliverability as major challenge
- 3.1% of marketing emails were flagged as spam (2024) — share flagged as spam in benchmarking/deliverability measurement
- 15% of emails are opened within the first hour of sending (2023) — distribution of open timing
Email remains the ROI powerhouse, with automation and personalization boosting performance amid rising deliverability focus.
Related reading
01 · Category
User Adoption4 stats
01
42% of global respondents used email for work-related purposes at least once per day (2022)
02
41% of B2B marketers use email to nurture leads (2022) — share using email for lead nurturing
03
19% of marketers use webhooks/event streams to trigger email sends (2023) — share using event-driven triggering
04
75% of organizations implemented DMARC policies in production environments (2024) — share with DMARC deployment
Interpretation
User Adoption Interpretation
For User Adoption, email remains the default channel with 42% of global respondents using it daily for work and B2B marketers continuing to rely on it, with 41% using email for lead nurturing, while adoption is also evolving toward automation as only 19% use webhooks or event streams for email triggers.
02 · Category
Industry Trends8 stats
01
44% of consumers said they are more likely to purchase from a brand that sends them personalized emails (2018)
02
47% of organizations use email marketing automation (2023)
03
1.6 trillion emails are sent per day in 2023
04
361.6 billion emails are sent per day in 2024 worldwide (projected)
05
49% of marketers plan to increase their email marketing budgets over the next 12 months (2024) — share planning budget increases
06
33% of marketers report that automation reduces manual work for email campaigns (2022) — percent reporting automation impact
07
13% of organizations use SMS as a complementary channel to email for marketing (2024) — share using SMS alongside email
08
43% of marketers say deliverability is improved by authentication (SPF/DKIM/DMARC) (2023) — percent linking authentication with deliverability improvement
Interpretation
Industry Trends Interpretation
Industry Trends make it clear that email remains a dominant marketing channel, with 361.6 billion emails projected to be sent per day in 2024 and 47% of organizations already using email marketing automation to keep campaigns effective and scalable.
03 · Category
Market Size3 stats
01
Email marketing software market is projected to reach $3.9 billion by 2030 (CAGR 7.4% from 2023 to 2030)
02
Marketing automation software market is projected to reach $13.6 billion by 2028 (CAGR 12.7% from 2021 to 2028)
03
Email marketing market is projected to reach $17.1 billion by 2032 (CAGR 8.5% from 2024 to 2032)
Interpretation
Market Size Interpretation
The market size for email and related marketing tools is set to keep expanding steadily, with email marketing projected to reach $17.1 billion by 2032 and marketing automation climbing to $13.6 billion by 2028, signaling strong long term growth in this category.
More related reading
04 · Category
Cost Analysis3 stats
01
Email marketing is reported to cost about $0.02per email sent (2019)
02
34% of marketers say email delivers the highest ROI among marketing channels (2022)
03
7% of global adults report receiving unwanted marketing emails weekly (2022)
Interpretation
Cost Analysis Interpretation
From a cost analysis perspective, email marketing is extremely inexpensive at about $0.02 per email sent, and the majority of marketers find it delivers the best ROI at 34%, even though 7% of global adults still receive unwanted marketing emails weekly.
05 · Category
Performance Metrics9 stats
01
27% of email marketers say deliverability issues are a major challenge (2023) — percent citing deliverability as major challenge
02
3.1% of marketing emails were flagged as spam (2024) — share flagged as spam in benchmarking/deliverability measurement
03
15% of emails are opened within the first hour of sending (2023) — distribution of open timing
04
28% of recipients click within the first 24 hours of email delivery (2023) — click timing distribution
05
62% of marketers use A/B testing in email campaigns (2023) — share using A/B tests
06
31% of email messages use embedded links that are tracked via UTM parameters (2024) — share of messages with link tracking
07
4.9% average email conversion rate across industries (2024) — typical conversion rate from emails
08
0.8% average spam complaint rate (2024) — reported complaint rate
09
11% of email recipients unsubscribe after a single email (2022) — share unsubscribing after one email
Interpretation
Performance Metrics Interpretation
For performance metrics, email engagement is strongest early with 15% of emails opened within the first hour and 28% of recipients clicking within 24 hours, while deliverability risk remains a concern as 27% of marketers report deliverability issues as a major challenge.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
James Okoro. (2026, February 13). Email Newsletter Statistics. Gitnux. https://gitnux.org/email-newsletter-statistics
MLA
James Okoro. "Email Newsletter Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/email-newsletter-statistics.
Chicago
James Okoro. 2026. "Email Newsletter Statistics." Gitnux. https://gitnux.org/email-newsletter-statistics.
Sources & references
27 datasets cited across this report · attribution is report-level
+5 additional datasets cited (not shown individually)