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SecurityPlus for MDaemon Inline Virus Scanning

SecurityPlus for MDaemon Inline Virus Scanning

MDaemon can now scan incoming messages for viruses during the actual SMTP session. A new switch was added to the Security | AntiVirus GUI to govern this behavior. This switch is enabled by default. This feature requires SecurityPlus for MDaemon and MDaemon 8.0 or above. If a message is found to be infected the message is immediately refused and will not be accepted. This feature can and will slow down the processing rate of the SMTP server.

Messages larger than MAX_SIZE will not be scanned during the SMTP session. MAX_SIZE defaults to 10MB and can be set by editing the following in the CFILTER.INI file with Notepad:

[VirusScanner]
InlineSMTPMax=10 (value in megabytes)

The SMTP-(in) log will show the result of AV processing. The possible results you might see are:

  • The message was scanned and found infected with a virus.
  • The message was scanned and no virus was found.
  • The message could not be scanned (usually because a ZIP or other type or attachment could not be opened/accessed).
  • The message could not be scanned (it exceeds the max size limit).
  • An error occured during the scan.