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