spam filters

From: Jacques Jamain (jjamain@geocities.com)
Date: Sun, 01 Mar 1998 11:23:33 +0100

Hi Yarners,

since some days i receive a new generation of spam with blank From and
To fields. Sometimes without Date: field.
Those spam messages pass thru all my filters and end in my inbox. I'm
short in finding what search-for string to set in a filter rule.
Any help there?
BTW i was thinking that the regular expression stuff was applicable
to the search-for string but it seems it's pure character comparison.
Is that right?
About the date: field, Yarn-import rejects explicitly message w/o this
field, but not in all the cases. Someone re-engineered the rule?
Thanks in advance.

-- 
Jacques JAMAIN   - jjamain@geocities.com
... on the french riviera ...