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In TMEMS you may notice in the 'Message Tracking' logs that some mails are blocked for reason 'Sender blocked'.

This can be for two reasons:

1. The administrator has added the sender address to the global 'Blocked sender' list in the TMEMS admin portal.

2. User has added the sender email address to their own personal 'Blocked sender' list (End User Console).

 

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  1. Log on to the Trend Micro Email Security web console.
  2. Go to Inbound Protection > Connection Filtering > Sender Filter.

    Sender Filter

  3. On the Blocked Senders tab, click Add or simply browse the list to check the existing blocked senders.
  4. On the Specify Target Recipient window, specify the target recipient of the sender you want to add and click Next.
    • My organization – entire organization
    • Managed domain
    • Email address – specific recipient address in your managed domains
  5. Type the domain or email address and click Add.

    Target Recipient

  6. TMEMS validates the sender address before adding it to the list. Make sure that the email address format is correct:
    Valid Formats
    • name@example.com
    • name@info.example.com
    • name@*.example.com
    • name@*
    • *@example.com
    • *@server.example.com
    • *@*.example.com
    Invalid Formats
    • name@info.*.example.com
    • name@example.com.*
    • *name@info.example.com
    For more information, you can check the full documentation here: Configuring Approved and Blocked Sender Lists.

  1. Log on to the TMEMS web console.
  2. Go to Inbound Protection > Content Filtering > Content Policy.
  3. Click Add.
  4. On the Basic Information tab, enter the name of the Rule on the Name field.

    Basic Information

  5. On the Recipients and Senders tab under the Recipients section, select the specific domain(s) and/or user you would like to apply the Rule.

    Add Rule

  6. On the same tab under the Senders section, select the specific domain(s) and/or user you would like to apply the Blocked Rule.

    Senders

  7. Go to the Scanning Criteria tab then select No Criteria.

    No Criteria

  8. Go to the Actions tab, under the Intercept section, select Quarantine or Delete the entire message.

    Delete or Quarantine

  9. Click Submit.
  10. A pop-up window will appear. Click OK.

    Confirmation message

  11. Please ensure that the policies above do not include a "deliver now" action, as this would bypass the policy you created.

    Action

Keywords: configure block sender TMEMS,adding senders to block list,blocking emails by sender,blocking emails by domain