Re: [Exim] Deny Messages with certain file extensions

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Autor: jvanasco
Datum:  
To: Dan Muey
CC: exim-users
Betreff: Re: [Exim] Deny Messages with certain file extensions
assuming you have exim patched with exiscan-acl, then yes it should
work.

otherwise, i think exim will error on your configuration

i think the exiscan-acl docs have a sample acl 'flowchart' in there

On Thursday, August 28, 2003, at 03:22 PM, Dan Muey wrote:

> Howdy Exim group!
>
> I'm was looking over the thread about stopping sobig, and I'd like to
> simply deny messages with certain file extensions attached to them to
> stop any virus. Since I'm such an Exim newbie I'm wondering if I am
> implementing this properly/going about it properly/understanding the
> principles involved and if this will work on messages coming in to
> accounts on the Exim server or email being sent out by accounts on the
> exim server or both.
>
> In my Exim4 conf file I have ::
>
> acl_smtp_data = check_message
>
> ...
> --- current check_message ---
> #!!# ACL that is used after the DATA command
> check_message:
> require verify = header_sender
> accept
>
> --- will this change to check_message cause attachments with those
> extensions to be denied? ---
> #!!# ACL that is used after the DATA command
> check_message:
> require verify = header_sender
>
> deny  message = contains $found_extension file (blacklisted).
>     demime =
>         ade:adp:bas:bat:chm:cmd:com:cpl:crt:exe:hlp:hta:inf:ins:isp
>         :js:jse:lnk:mdb:mde:msc:msi:msp:mst:pcd:pif:reg:scr:sct:shs
>         :shb:url:vb:vbe:vbs:wsc:wsf:wsh:ADE:ADP:BAS:BAT:CHM:CMD:COM
>         :CPL:CRT:EXE:HLP:HTA:INF:INS:ISP:JS:JSE:LNK:MDB:MDE:MSC:MSI
>         :MSP:MST:PCD:PIF:REG:SCR:SCT:SHS:SHB:URL:VB:VBE:VBS:WSC:WSF:WSH

>
> accept
>
> TIA
>
> Dan
>
> --
>
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>