add mailserver option handling

ab-openldap/ab-openldap.sh

@@ -181,6 +181,22 @@ while [ $# -gt 0 ]; do
             volume_ldif="$2"
             shift
             ;;
+        --mailserver)
+            # mailserver for IMAP/S password verification
+            if [ -z "$2" ]; then
+                consoleError '1' 'You must specify a mailserver hostname when using --mailserver.'
+            fi
+            mailserver="$2"
+            shift
+            ;;
+        --mailserver-port)
+            # specify IMAP/S port for mailserver
+            if [ -z "$2" ]; then
+                consoleError '1' 'You must specify a port when using --mailserver-port.'
+            fi
+            mailserver_port="$2"
+            shift
+            ;;
         --backupdir)
             # location of backup files to restore
             if [ -z "$2" ]; then