Views:
IMSS does not identify messages from senders and recipients in this list as C&C email. The list can contain a maximum of 5,000 entries.
Note
Note
IMSS identifies addresses used in the message header and not the SMTP session.

Procedure

  1. On the Scanning Conditions screen, select C&C email settings.
  2. Click C&C email settings.
    The C&C Email Settings screen appears.
  3. Select Enable C&C Email Approved List.
  4. Add email addresses using any of the following methods:
    1. Type an email address in the box then click Add.
      The address appears in the list.
      Note
      Note
      You can use the asterisk character to add multiple addresses. For details, see Using the Asterisk Wildcard.
    2. Import email addresses from a text file on a local host to the IMSS server.
      Note
      Note
      Each line in the file should contain only one email address that follows any of the valid formats. IMSS does not import incorrectly formatted email addresses.
      If the list already contains email addresses, choose whether to merge the new entries or overwrite the existing ones.
  5. Optional: Export the address list as a text file.
  6. Optional: Send a message to cnc_falsepositive@trendmicro.com to notify Trend Micro about email addresses that may have been misclassified.
  7. Click Save.