Cisco Secure Email - Network

This page provides details on the network ranges, IPs, ASNs and points-of-presence (PoPs) for Cisco Secure Email.

What is Cisco Secure Email?

Cisco Secure Email Logo

Cisco Secure Email - Mail
Cisco Secure Email (formerly IronPort) is an email security solution that protects organizations from email-borne threats such as spam, phishing, malware, ransomware, and other advanced email attacks.


Cisco Secure Email Network Ranges

IPv4 Network Ranges

  • 23.90.96.0/24
  • 23.90.97.0/24
  • 23.90.98.0/24
  • and 182 more

IPv6 Network Ranges

  • 2620:101:200a::/48
  • 2620:101:200b::/48
  • 2620:101:200c::/48
  • and 13 more

Cisco Secure Email ASNs

AS40427
Cisco Systems Ironport Division
AS30215
Cisco Systems Ironport Division
AS30238
Cisco Systems Ironport Division
and 1 more

Cisco Secure Email Top Hosted Applications

App Category
Cybersecurity
Business
Cybersecurity
Financial
Mail