6.5 million emails daily

6.5 million

corporate emails daily

With one of the largest corporate email systems, in 2022, the Postal Service handled more than 6.5 million legitimate emails a day delivered to more than 185,000 email accounts.

* | Tags: Innovation USPS Fact #338 | March 20, 2023

Staying connected

The Postal Service has one of the world’s largest computer networks — linking more than 34,000 facilities and connecting hundreds of thousands of employees and hundreds of systems.

In 2022 some emails were blocked due to:

  • Spam: More than 5 million spam email messages were blocked monthly.
  • Content: More than 16 millionemails were blocked monthly due to malicious content including phishing, brand spoofing and suspicious URLs being detected.
  • Malware: More than 5,000 email messages were blocked monthly due to malware.
  • Phishing: More than 675,000 phishing email messages were blocked monthly.
  • On average, 25 percent of the 101 million email messages received from external senders were blocked monthly for the safety of the Postal Service network and email users.