Threat Report: Exposing Malware in Linux-Based Multi-Cloud Environments | Download Now

App Control: E-mail Notifications Are Not Being Sent

App Control: E-mail Notifications Are Not Being Sent


  • App Control Server: All Supported Versions


The following error is received then clicking test e-mail: "Test mail error: Unable to connect to the remote server"


This can potentially be caused by:
  • A problem with the network connectivity between the App Control server and the e-mail server
  • Third party antivirus interfering with the Reporter service
  • SMTP emails being caught as spam


  • Confirm whether or not it's a network connectivity issue:
    • While logged in as the Carbon Black Service Account user, telnet to port 25 for unsecured configuration, or ports 465 and 587 for secure configurations.
  • Confirm the Server Exclusions in any antivirus/security products on the application server.
  • Confirm that no SMTP email security software is blocking the email.

Additional Notes

If it is required add the SMTP email to an 'approved list'

Related Content

Labels (1)
Was this article helpful? Yes No
No ratings
Article Information
Creation Date: