Re: [exim] Lack of demime support in latest verstion + more.

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Autor: Sven Eschenberg
Datum:  
To: exim-users
Betreff: Re: [exim] Lack of demime support in latest verstion + more.


Am 06.02.2017 um 17:01 schrieb kamil kapturkiewicz:
> Hi,
> I recently upgraded Exim to 4.88 and had to comment out part of configuration (demime):
>
> acl_check_data:
>
> ##  deny  message       = $found_extension files are not accepted here
> ##        demime                = com:exe:vbs:bat:pif:reg:scr

>
> ##  deny  message       = Serious MIME defect detected ($demime_reason).
> ##      demime          = *
> ##      condition       = ${if >{$demime_errorlevel}{2}{1}{0}}

>
> deny  message         = This message contains a virus ($malware_name) and is rejected.
>         log_message     = rejected VIRUS ($malware_name) from $sender_address to $recipients (ClamAV)
>         set acl_m0      = clamd:/tmp/clamd.socket
>         condition       = ${if < {$message_size}{VIRUS_FILESIZE_LIMIT}}
> ##     demime          = *
>         malware         = *

>
> How can I bring back this functionality?


AFAIK not at all. It was deprecated for years and now got dropped
unconditionally IIRC. Check v4.88 release notes/changes.

>
> I have another problem with blocking spamers with no rev DNS. I have added to my configuration:
>
> acl_check_rcpt:
>
> accept hosts = :
>
>   deny message = Broken Reverse DNS no host name found for IP address $sender_host_address
>         condition = ${if and\
>         {{def:sender_host_address}\
>         {!def:sender_host_name}}\
>         {yes}{no}}

>
> It generally works, but it also refuse sending emails from authenticated users. Where I should move this to allow sending emails for authenticated users regardless of their rev DNS status?
>


Sidenote: You can use !verify = reverse_host_lookup instead of looking
at the host address and host name.
Add something like !authenticated = * to apply the statement to
non-authenticated users only.

> brgds,
>
>
>
>


Regards

-Sven