diff --git a/AutoTx/AutoTx.cs b/AutoTx/AutoTx.cs
index 46080422680b94b25ee38d7a9d3b66ddba88c09e..c069730e149b437e602974f92b65004f913b4169 100644
--- a/AutoTx/AutoTx.cs
+++ b/AutoTx/AutoTx.cs
@@ -931,9 +931,10 @@ namespace AutoTx
         /// <summary>
         /// Generate a report on expired folders in the grace location.
         /// 
-        /// Check all user-directories in the grace location for subdirectories whose
-        /// name-timestamp exceeds the configured grace period and generate a summary
-        /// containing the age and size of those directories.
+        /// Check all user-directories in the grace location for subdirectories whose timestamp
+        /// (the directory name) exceeds the configured grace period and generate a summary
+        /// containing the age and size of those directories. The summary will be sent to the admin
+        /// if the configured GraceNotificationDelta has passed since the last email.
         /// </summary>
         /// <param name="threshold">The number of days used as expiration threshold.</param>
         public string GraceLocationSummary(int threshold) {
@@ -949,6 +950,13 @@ namespace AutoTx
             if (string.IsNullOrEmpty(report))
                 return "";
             report = "Expired folders in grace location:\n" + report;
+            var delta = (int)(DateTime.Now - _status.LastGraceNotification).TotalMinutes;
+            report += "\nTime since last grace notification: " + delta + "\n";
+            if (delta >= _config.GraceNotificationDelta) {
+                SendAdminEmail(report, "Grace location cleanup required.");
+                _status.LastGraceNotification = DateTime.Now;
+                report += "\nNotification sent to AdminEmailAdress.\n";
+            }
             return report;
         }
 
diff --git a/AutoTx/Resources/configuration-example.xml b/AutoTx/Resources/configuration-example.xml
index 8917becb23b611ea39070ac8f3379720fe8dddb6..ec6bc1400363489de81452289fb7ef0cfee55619 100644
--- a/AutoTx/Resources/configuration-example.xml
+++ b/AutoTx/Resources/configuration-example.xml
@@ -87,6 +87,10 @@
          messages to, e.g. on completed transfers. Can be empty. -->
     <AdminDebugEmailAdress>admin@mydomain.xy</AdminDebugEmailAdress>
 
+    <!-- GraceNotificationDelta: minimum time (in minutes) between two emails
+         about expired folders in the grace location (default: 720 (12h)) -->
+    <GraceNotificationDelta>720</GraceNotificationDelta>
+
     <!-- InterPacketGap: RoboCopy parameter to limit the bandwidth -->
     <InterPacketGap>0</InterPacketGap>
 
diff --git a/AutoTx/XmlWrapper/ServiceConfig.cs b/AutoTx/XmlWrapper/ServiceConfig.cs
index dd70309fcdf9f4cccbbf9869e1e590c55f5a93c8..0006b1f6ade03b6424be71a8dc59d52d379e364d 100644
--- a/AutoTx/XmlWrapper/ServiceConfig.cs
+++ b/AutoTx/XmlWrapper/ServiceConfig.cs
@@ -24,6 +24,7 @@ namespace AutoTx.XmlWrapper
             EmailPrefix = "";
             AdminEmailAdress = "";
             AdminDebugEmailAdress = "";
+            GraceNotificationDelta = 720;
 
             InterPacketGap = 0;
 
@@ -116,6 +117,8 @@ namespace AutoTx.XmlWrapper
         public string AdminEmailAdress { get; set; }
         public string AdminDebugEmailAdress { get; set; }
 
+        public int GraceNotificationDelta { get; set; }
+
         public int InterPacketGap { get; set; }
 
         /// <summary>
@@ -212,8 +215,8 @@ namespace AutoTx.XmlWrapper
                     "AdminEmailAdress: " + AdminEmailAdress + "\n" +
                     "AdminDebugEmailAdress: " + AdminDebugEmailAdress + "\n" +
                     "StorageNotificationDelta: " + StorageNotificationDelta + "\n" +
-                    "AdminNotificationDelta: " + AdminNotificationDelta + "\n";
-
+                    "AdminNotificationDelta: " + AdminNotificationDelta + "\n" +
+                    "GraceNotificationDelta: " + GraceNotificationDelta + "\n";
             }
             return msg;
         }
diff --git a/AutoTx/XmlWrapper/ServiceStatus.cs b/AutoTx/XmlWrapper/ServiceStatus.cs
index 25f4ed826441dde7647da25629f8375983abd2de..50c25439d958acfc7d32b8d5796eed0e62fb8ce7 100644
--- a/AutoTx/XmlWrapper/ServiceStatus.cs
+++ b/AutoTx/XmlWrapper/ServiceStatus.cs
@@ -14,6 +14,7 @@ namespace AutoTx.XmlWrapper
         private DateTime _lastStatusUpdate;
         private DateTime _lastStorageNotification;
         private DateTime _lastAdminNotification;
+        private DateTime _lastGraceNotification;
 
         private string _limitReason;
         string _currentTransferSrc;
@@ -49,6 +50,15 @@ namespace AutoTx.XmlWrapper
             }
         }
 
+        [XmlElement("LastGraceNotification", DataType = "dateTime")]
+        public DateTime LastGraceNotification {
+            get { return _lastGraceNotification; }
+            set {
+                _lastGraceNotification = value;
+                Serialize();
+            }
+        }
+
         public string LimitReason {
             get { return _limitReason; }
             set {
@@ -209,7 +219,9 @@ namespace AutoTx.XmlWrapper
                 "LastStorageNotification: " +
                 LastStorageNotification.ToString("yyyy-MM-dd HH:mm:ss") + "\n" +
                 "LastAdminNotification: " +
-                LastAdminNotification.ToString("yyyy-MM-dd HH:mm:ss") + "\n";
+                LastAdminNotification.ToString("yyyy-MM-dd HH:mm:ss") + "\n" +
+                "LastGraceNotification: " +
+                LastGraceNotification.ToString("yyyy-MM-dd HH:mm:ss") + "\n";
         }
     }
 }