I followed some links today, and discovered to my horror that one of the
spamtools I'd been using had been throwing away some valid messages -
including some from this very list.
It turned out that OSIRUSOFT had gone belly-up, and started declaring that
"the world consists of spammers"..... or something.
Digging into the facts gave me the following link:
<http://news.spamassassin.org/modules.php?op=modload&name=News&file=article
&sid=44&mode=thread&order=0&thold=0>
and the short fix is this (for people who know how to manipulate
SpamAssassin scores):
score RCVD_IN_OSIRUSOFT_COM 0
score X_OSIRU_DUL 0
score X_OSIRU_DUL_FH 0
score X_OSIRU_OPEN_RELAY 0
score X_OSIRU_SPAM_SRC 0
score X_OSIRU_SPAMWARE_SITE 0
Shows the risks of depending on too many services you don't track the
status of.....
Harald