Voytek Eymont wrote:
> On Mon, October 23, 2006 7:37 am, mouss wrote:
>   
>> albi albinootje wrote:
>>     
>>> mm, i wasn't aware that postfix can possibly also block
>>> gif-attachments, thanks for the reminder
>>>       
>> Not that I encourage blocking gif, but you can use header_checks.
>> something like:
>>
>> /^Content-Type:\s*image\/gif/                550 gif obsoleted here. use png.
>>     
>
> thanks
>
> that should be a REJECT, yes ?
>
> /^Content-Type:\s*image\/gif/         550 REJECT gif obsoleted here. use png.
>
>
>   
No, 550 implies is a REJECT (with the code specified). so use either 
REJECT or 550, not both. see access(5) man page (look for "REJECT 
ACTIONS").

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