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If you configured the update source to download antivirus and content security components from the update source, and updated components cannot be downloaded. See Setting the Update Source and Understanding the Antivirus and Content Security Components.
Perform the following steps to help troubleshoot the cause of the issue:
  • If Other Internet source is enabled as the update source, check whether the folder containing the latest components has the corresponding signature files for secure digital download. The absence of the *.sig file will cause an unsuccessful component download and update.
  • If Trend Micro ActiveUpdate is enabled as the update source, check the connection from the Domino server to the ActiveUpdate server.
    1. Use nslookup to verify that the Domino server can resolve the ActiveUpdate server's FQDN.
    2. Ping the following from the Domino server:
      smld5-p.activeupdate.trendmicro.com
    3. Telnet the ActiveUpdate server at port 80 to make sure the Domino server can connect via HTTP.
  • Check the Domino console to see whether SMDupd returns an error message.
    If ScanMail still cannot update components, enable SMDupd debugging and then contact Trend Micro Support (see Debugging ScanMail Tasks).
Keywords: unable to download