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TLS Encryption for Email Server Profiles

Learn how to configure TLS encryption for email server profiles to help prevent email spoofing.
Using an authenticated transport layer security (TLS) connection for your email server profiles allows you to use cloud-based email for reports and alerts and helps your network meet security and compliance requirements. This also helps to prevent malicious activity, such as SMTP relay, which can be used to send spam or malware, and email spoofing, which can be used for phishing attacks.
  1. Configure a certificate profile for the email server.
  2. Create or edit an email server profile.
  3. Configure TLS authentication for the email server profile.
    1. Select
      SMTP over TLS
      as the
    2. (
      ) Specify the
      number you want to use to send the email (default is 587 for TLS).
    3. Specify the
      TLS Version
      As a best practice, we recommend that you use the latest available version of TLS.
    4. Select the
      Authentication Method
      • Auto
        (default)—Allow the client and server to determine the authentication method.
      • Login
        —Use Base64 encoding for the username and password and transmit them separately.
      • Plain
        —Use Base64 encoding for the username and password and transmit them together.
    5. Select the
      Certificate Profile
      that you configured in Step 1.
    6. Enter the
      User Name
      for the account that sends the email, then
      Confirm Password
  4. (
    Test Connection
    to confirm the firewall can connect to the email server.
  5. Commit
    your changes.
    You can now use the authenticated email server profile to configure email alerts for logs, to schedule reports for email delivery to a single recipient, and to create report groups to send reports to multiple recipients.

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