Bad filename detected

Alexandros G. Fragkiadakis alfrag at econ.soc.uoc.gr
Thu Sep 20 09:17:20 IST 2007


Glenn Steen wrote:
> On 19/09/2007, Scott Silva <ssilva at sgvwater.com> wrote:
>   
>> Glenn Steen spake the following on 9/19/2007 2:45 AM:
>>     
>>> On 19/09/2007, Alexandros G. Fragkiadakis <alfrag at econ.soc.uoc.gr> wrote:
>>>       
>>>> Gareth wrote:
>>>>         
>>>>> I am guessing that the attachment contains foreign text?
>>>>> The problem is caused by the 'file' command thinking it is an executable
>>>>> file. Executables dont have a common header so some foreight words at
>>>>> the start of the file can cause this problem.
>>>>> Yoy can remove the offending entries from the /usr/share/file/magic
>>>>> file. Search through the archives for more information on this.
>>>>>
>>>>> On Wed, 2007-09-19 at 09:24, Alexandros G. Fragkiadakis wrote:
>>>>>
>>>>>           
>>>>>> Hi all,
>>>>>>
>>>>>> Mailscanner gives me the following warnings:
>>>>>>
>>>>>> The following e-mails were found to have: Bad Filename Detected
>>>>>>
>>>>>> Sender: xxxxxx at xxx.xxx.xxx.xx
>>>>>> </econ/src/compose.php?send_to=>
>>>>>> IP Address: xxx.xxx.xxx.xxx
>>>>>> Recipient: xxxx at xx.xx </econ/src/compose.php?send_to=>
>>>>>> Subject: Re: xxx
>>>>>> MessageID: 9691B2BB95.039CD
>>>>>> Quarantine: /var/spool/MailScanner/quarantine/20070919/9691B2BB95.039CD
>>>>>> Report: MailScanner: No programs allowed (msg-5333-73.txt)
>>>>>>
>>>>>>
>>>>>> The user didn't send any attachments. I cannot understand why
>>>>>> mailscanner has problem with this email.
>>>>>>
>>>>>> Any help?
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Alexandros
>>>>>>
>>>>>>
>>>>>>
>>>>>>             
>>>> The user sends no attachments at all!
>>>>
>>>>         
>>> The "offending attachment" is likely the mails body text. if you look
>>> at the actual quarantined entry (in the filesystem), you can run the
>>> file command on the reported file ... just do:
>>> cd /var/spool/MailScanner/quarantine/20070919/9691B2BB95.039CD
>>> file msg-5333-73.txt
>>> ... and you'll see what the file command thinks about it. Likely it'll
>>> deem it something like "COM Executable (MS-DOS)", which is an
>>> over-optimistic one byte magic in some versions of file.
>>> Solutions? Hack you magic file, as already suggested (you need
>>> "compiler it" with "file -C" or somesuch ... look in the archives for
>>> the list.... all details are there:-), or update your file command to
>>> a version that isn't broken this particular way... or just disable the
>>> filetype checking (I wouldn't do that, it is effective...:-) by
>>> clearing out the File Command setting in
>>> /etc/MailScanner/MailScanner.conf ... Your choice where you go, what
>>> you do;).
>>>
>>> Cheers
>>>       
>> The string" I'm free tomorrow" will trigger a quicktime file flag. It can be
>> that simple.
>>
>>     
> Yeah, sure... It's just that ISTR there being some common greek phrase
> that would match one of the idiotic 1-byte magics for COM files... And
> Alexandros seems to have a vaguely greek name... and domain ....:-):-)
>
> Cheers buddy
>   
The file command gives me: "RFC 822 mail text"

I'll try to update it, thanks for your help!

Alexandros


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