+shift
+readarray -t cc < <(printf '%s\n' "$@" | sort -u)
+
+for i in "${!cc[@]}"; do
+ e=${cc[$i]##*<}
+ e=${e%%>*}
+ if grep -q -F "<$e>" <<<"$to"; then
+ unset "cc[$i]"
+ fi
+done
+
+{
+ printf 'To: %s\n' "$to"
+ if [ "${#cc[@]}" -gt 0 ]; then
+ printf 'Cc: %s\n' "${cc[@]}"
+ fi
+ printf 'Subject: %s\n\n' "$subject"
+ cat
+} > "$TARGET"