install_opendkim.sh: adjust configuration file.

install_opendkim.sh

@@ -189,6 +189,13 @@ else
    cat <<EOF > $opendkim_conf_file 2> $log_file
 # Datei $opendkim_conf_file
 
+# Sets the "authserv-id" to use when generating the Authentication-Results:
+# header field after verifying a message. The default is to use the name of
+# the MTA processing the message. If the string "HOSTNAME" is provided, the
+# name of the host running the filter (as returned by the gethostname(3)
+# function) will be used.
+AuthservID              "DKIM check $(hostname -f)"
+
 # OpenDKIM agiert als Mail Filter (= Milter) in den
 # Modi signer (s) und verifier (v) und verwendet eine
 # Socket-Datei zur Kommunikation (alternativ: lokaler Port)
@@ -243,6 +250,15 @@ OversignHeaders         From
 # "none" in such cases. Normally unsigned mail from non-strict domains does
 # not cause the results header field to be added.
 AlwaysAddARHeader       yes
+
+# Causes opendkim to fork and exits immediately, leaving the service running
+# in the background. The default is "true".
+Background              yes
+
+# Sets the DNS timeout in seconds. A value of 0 causes an infinite wait. The
+# default is 5. Ignored if not using an asynchronous resolver package. See
+# also the NOTES section below.
+DNSTimeout              5
 EOF
    opendkim_needs_restart=true
    if [[ $? -eq 0 ]] ; then