[Mailman-Users] Filtering Chinese spam.

[Kenneth G. Gordon]

Hello:

One of my mailman mailing lists has been suddenly afflicted with tons of Chinese spam. 

After reading an on-line discussion of this problem and how to handle it from a thread 
posted to this list in July of 2016, here:

https://mail.python.org/pipermail/mailman-users/2016-July/080993.html

I have modified my settings in Privacy Options/Spam Filters thusly:

^Subject: =?utf-8?B?
^Subject:.*\?{4,}
from: .*@qq.com
from: .*ebdoor.com
from: .*126.com
from: .*139.com
from: .*136.com
from: .*163.com
from: .*193.com

The "from" expressions have worked quite well, and using those I have cut the Chinese 
spam by over 90%, but I am still receiving periodic posts from other Chinese senders and I 
cannot keep adding more items to the "from" set for obvious reasons. 

Instead, as someone mentioned in that thread of July 2016, I find that all Chinese posts 
include the expression " =?utf-8?B?" following the word "Subject".

Accordingly, I have included that in the first line of my Spam FIlter. However, it does not 
seem to be working as desired as I am still receiving Chinese spam containing that 
expression.

>From that thread of July 2016, I have, today, added that second line above.

Can someone here tell me what I have NOT done correctly with that first line which makes it 
NOT work as desired?

Kenneth G. Gordon (Age 75)
A Tired Old SYSAD.



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