Hi Leslie!
Anno domini 2021 Fri, 1 Oct 20:06:07 -0500
J Leslie Turriff scripsit:
> When SpamAssassin misclassifies a piece of mail as spam, it wraps a
> bunch of stuff around the original message. When I use the Classify as NOT
> spam filter it changes the classification, but leaves the wrapper intact.
> Does anyone out there know how to write a filter stage to strip that
> junk off again? (See attachments)
>
> Leslie
> --
> Operating System: Linux
> Distribution: openSUSE Leap 15.3 x86_64
> Desktop Environment: Trinity
> Qt: 3.5.0
> TDE: R14.0.10
> tde-config: 1.0
>
In kmail go "Settings/Filters" --> "Classify as HAM" and add a filteraction "Run through program" (freely translated from german GUI) so the first action is "Mark as HAM" and the second runs the header saitizer program. I have attached a filter from my system that I use to that decrypts/sanitises mail headers for you as a starting point.
Nik
--
Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ...
#!/bin/bash
#
# (c) 31.7.2018, Dr. Nikolaus Klepp - dr.klepp@xxxxxx / office@xxxxxxxxx
#
case "$1" in
-?|-h|--help)
echo "Decrypts and sanitizes email comming from stdin."
echo "usage: $(basename $0) FILENAME"
exit 1
;;
esac
INCOMMING=$(mktemp)
TMP=$(mktemp)
cat > $INCOMMING
cat "$INCOMMING" | awk '
BEGIN {
header=1
clear=0
binary=0
encrypted=0
subject=""
}
/^[^ ].*/ {
if (header==1) {
clear=0
}
}
/^[sS][uU][bB][jJ][eE][cC][tT]:/ {
if (header==1) {
subject=$0
clear=1
}
}
# Alle unerwünschten Headereinträge
/^(X-UI-Filterresults:|X-GMX-Antivirus:|X-GMX-Antispam:|X-CNFS-Analysis:|DKIM-Signature:|[xX]-[mM][sS]-|x-exchange-|x-forefront-|x-microsoft-|spamdiagnostic)/ {
if (header==1) {
clear=1
}
}
# Ende des Headers
/^$/ {
if (header) {
header=0
clear=0
if (encrypted) {
print subject " *DECRYPTED*"
if (0!=system("gpg2 -d \"'$INCOMMING'\" 2>/dev/null")) {
system("rm \"'$TMP'\"")
}
exit 1
} else {
print subject
}
}
}
/^Content-Type: multipart\/encrypted;$/ {
if (header) {
clear=1
encrypted=1
}
}
{
if (header==1) {
if (clear==0) {
print $0
}
} else {
print $0
}
}
' > $TMP
if [ -f $TMP ]; then
mv $TMP $INCOMMING
fi
cat $INCOMMING
rm $INCOMMING
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