[CentOS] SPAM on the List
Ljubomir Ljubojevic
office at plnet.rs
Sun Jul 17 08:01:07 UTC 2011
Always Learning wrote:
> On Sat, 2011-07-16 at 20:06 -0400, Mark Weaver wrote:
>
>> On 7/16/2011 6:50 PM, Always Learning wrote:
>>>
>>> If there was an automatic ban on List mail containing HTML parts, it is
>>> likely the latest crap would not be distributed to everyone.
>>>
>>> A possible test of the Content-Type: header for
>>>
>>> multipart/mixed;
>>>
>>> or
>>>
>>> text/html;
>>>
>>>
>>> might stop the spam.
>
>
>> you mean like the default settings of Mailman list software that the
>> CentOS list "doesn't" run on? I have five lists running on one of my
>> CentOS servers and crap like that doesn't ever make it to the list.
>
> It is the method I use with Exim to block unwanted HTML emails.
>
> I also do not accept external mail if the HELO/EHLO is not identical to
> the host name used by the sending server. Its a marvellous method of
> removing lots of spam. Unfortunately some large organisations (i.e.
> Ebay, British Telecommunications (BT) and others) are so utterly
> incompetent they fail - so their emails get rejected. If they want to
> send us emails, they have to obey our rules.
>
>
I use it too. Reverse-DNS check is best SPAM repellent there is. Only
mail from properly set mail servers is accepted.
Ljubomir
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