This file is indexed.

/etc/avenger/unknown is in mailavenger 0.8.4-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
# If using qmail, uncomment the following line
#QMAIL=1

VUTAB=/etc/mail/virtusertable.db 

error=0
err_accum () {
    newerr="$1"
    if test "$newerr" -gt "$error"; then
	error="$newerr"
    fi
}

if test -s "$QMAIL"; then
    aliascheck --qmail -- "$RECIPIENT_LOCAL" > /dev/null && exit 0
    err_accum $?

else # sendmal
    aliascheck -- "$RECIPIENT_LOCAL" > /dev/null && exit 0
    err_accum $?

    if test -f "$VUTAB"; then
	aliascheck --map -- "$RECIPIENT" "$VUTAB" && exit 0
	err_accum $?

	aliascheck --map -- "@$RECIPIENT_HOST" "$VUTAB" && exit 0
	err_accum $?
    fi

fi

case "$error" in
    1)
	   reject user unknown
	   ;;
    0)
	   # Shouldn't happen
	   ;;
    *)
	   # To defer mail when alias file not readable, uncomment the
	   # following line:
	   #defer Temporary error processing alias file
	   ;;
esac