How Many Emails Are Sent Per Day? 2026 Email Statistics

About 392.5 billion emails are sent and received worldwide each day in 2026, according to The Radicati Group's Email Statistics Report 2024-2028.

That works out to roughly 4.5 million emails per second when the daily total is divided across 86,400 seconds.

Worldwide Daily Email Traffic

• 2024: 361.6 billion per day
• 2025: 376.4 billion per day
• 2026: 392.5 billion per day
• 2027 forecast: 408.2 billion per day
• 2028 forecast: 424.2 billion per day

The figures include business and consumer email sent and received worldwide. They should not be interpreted as marketing-email volume alone.

Why the Number Keeps Growing

Email remains a basic infrastructure layer for account creation, business communication, ecommerce receipts, security notifications, product alerts, newsletters, customer service, and automated workflows. Growth does not mean every individual category grows at the same rate.

What This Statistic Does Not Tell You

The global total does not provide a universal open rate, click rate, spam percentage, deliverability benchmark, or ideal sending frequency. Those metrics depend on source, industry, mailbox provider, audience, and measurement method.

Open Rates Need Special Caution

Privacy features such as Apple Mail Privacy Protection can load tracking pixels without a human intentionally opening the message. That makes open rate useful as a directional signal in some contexts, but not a clean universal measure of attention.

See how to interpret email open rate.

What High Global Volume Means for Senders

Competition for attention is real, but inbox placement is not determined by global message count. Senders should focus on controllable factors:

• SPF, DKIM, and DMARC where appropriate;
• sender reputation;
• complaint behavior;
• clean and permission-aware audience data;
• relevant content;
• controlled sending patterns;
• clear unsubscribe and preference handling.

For the operational layer, see email deliverability best practices.

Where List Quality Fits

Global email-volume growth does not make mailbox providers more tolerant of invalid addresses. For older or uncertain databases, email list cleaning and bulk email verification can help isolate address-quality problems before a major send.

Frequently Asked Questions

How many emails are sent per day in 2026?

The Radicati Group forecasts 392.5 billion emails sent and received worldwide per day in 2026.

How many emails is that per second?

Approximately 4.5 million per second, based on the 392.5 billion daily estimate.

Is the number still growing?

Yes. The same Radicati forecast rises to 408.2 billion daily messages in 2027 and 424.2 billion in 2028.

Does most of that volume come from email marketing?

No. The global total includes many kinds of business and consumer email, including transactional and person-to-person communication.

Bottom Line

Email remains one of the internet's largest communication systems: roughly 392.5 billion messages per day in 2026. Use that number as market context, not as a campaign-performance benchmark.