Bill Landry wrote:
> Dan Zachary wrote:
>   
>> I have recently noted that database signatures of 'type 4' are not 
>> always detected. (Often used to detect phishing or greeting card scams).
>>
>>
>> I am using sendmail and mimedefang. The mimedefang is calling clamd.
>>
>>     
> Yes, check the archives.  This is a known issue it seems with wrapper programs
> like mimedefang, mailscanner, amavisd-new, etc., that break messages up into
> decoded mime parts and send the individual parts to clamd for scanning.  The
> type 4 signatures want to see the whole message in its entirety, not just the
> individual decoded parts.
>   

This is actually described (and I believe already enabled) in the 
example filter file, but to have MIMEDefang provide a copy of the intact 
mail file to the virus scanners, drop the following into the 
filter_begin section of MD's filter:

---------

# Copy original message into work directory as an "mbox" file for 
virus-scanning
md_copy_orig_msg_to_work_dir_as_mbox_file();

---------


Craig.
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