Re: [exim] Strange problem with mime_acl_check.

> From: pencho kuncho

> I have a very strange situation with one our client. He tried
> to send mail to us with attachment (about 2mb, which is
> zipped folder with 20-30 files inside)

> 2016-01-14 23:54:22 1aJppa-0000iB-39 H=(mail.host.com) [8.1.4.2] F=<user@???> 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

Ask the user to forward that message with exact same attachment
to your outside mailbox (like your mkp_71@???),
download the attachment to the machine with Exim
and while logged in via ssh, run the command:
time /usr/bin/unzip -l filename.zip