Hi Andrew,

I understand your point but this is our 
client tried to send mail to us, who is in excluded senders. The 
attachment is about 2mb, zipped file, contains folder with 20-30files 
inside. 

Thanks.

  

  

  
 >-------- Оригинално писмо -------- 
  
 >От: Andrew C Aitchison [email protected] 
  
 >Относно: Re: [exim] Strange problem with mime_acl_check. 
  
 >До: kuncho pencho   
  
 >Изпратено на: 15.01.2016 15:50 
  

  
On Fri, 15 Jan 2016, kuncho pencho wrote:
  
 
  
 > Yes, i see but it was working til yestarday. I check this with my personal 
 > mail account and send zipped folder with files inside and pass without 
 > problem. Why is not working for my client and where should i looking for 
 > this problem?
  
 
  
 If you zipped a large file (perhaps 1TB file of zero bytes)
  
 the zipped file might still be quite small.
  
 Since the original file is large, checking it could take a long time ...
  
 
  
 Attachments like this are sometimes sent to attack a server,
  
 or possibly to break in, if something crashes in the right way.
  
 
  
 > >-------- Оригинално писмо --------
  
 >
  
 > >От: Jeremy Harris 
   [email protected] 
  
 >
  
 > >Относно: Re: [exim] Strange problem with mime_acl_check.
  
 >
  
 > >До: 
   [email protected] 
  
 >
  
 > >Изпратено на: 15.01.2016 11:51
  
 >
  
 >
  
 > On 15/01/16 09:16, pencho kuncho wrote:
  
 >
  
 >> 
   [email protected]  >: host mail.example.com[1.2.3.4] said: 451
  
 >
  
 >> Temporary local problem - please try later (in reply to end of DATA command)
  
 >
  
 >> Log message is:
  
 >
  
 >> 2016-01-14 23:54:22 1aJppa-0000iB-39 H=(mail.host.com) [8.1.4.2] F= 
   [email protected]  > temporarily rejected during MIME ACL checks: failed to 
expand ACL string "${if match{${run{/usr/bin/unzip -l 
$mime_decoded_filename}}}{\N(?i)\n.+\.(zip|exe|com|vbs|bat|pif|scr|hta|htm|html|js|cmd|chm|cpl|jsp|reg|vbe|lnk|uri|dll|sys|btm|dat|msi|prf|inf|vb|7z|gz|rar|jar|ace|url|cab)\n\N}}":
 command timed out
  
 >
  
 > [...]
  
 >
  
 >> 21. condition = ${if match{${run{/usr/bin/unzip -l \
  
 >
  
 >
  
 >
  
 > ... it was running a command, unzip. And it gave up after a while,
  
 >
  
 > because the command did not complete.
  
 >
  
 > -- 
  
 >
  
 > Cheers,
  
 >
  
 > Jeremy
  
 >
  
 >
  
 >
  
 >
  
 >
  
 >
  
 >
  
 > -- 
  
 >
  
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