diff --git a/services/tunnelbroker/src/Service/TunnelbrokerServiceImpl.cpp b/services/tunnelbroker/src/Service/TunnelbrokerServiceImpl.cpp
--- a/services/tunnelbroker/src/Service/TunnelbrokerServiceImpl.cpp
+++ b/services/tunnelbroker/src/Service/TunnelbrokerServiceImpl.cpp
@@ -153,7 +153,15 @@
           "No such session found. SessionID: " + sessionID);
     }
     const std::string clientDeviceID = sessionItem->getDeviceID();
-    const std::string messageID = generateUUID();
+    const std::string messageID = tools::generateUUID();
+
+    const database::MessageItem message(
+        messageID,
+        clientDeviceID,
+        request->todeviceid(),
+        request->payload(),
+        "");
+    database::DatabaseManager::getInstance().putMessageItem(message);
     if (!AmqpManager::getInstance().send(
             messageID,
             clientDeviceID,
@@ -197,6 +205,28 @@
     }
     const std::string clientDeviceID = sessionItem->getDeviceID();
     DeliveryBrokerMessage messageToDeliver;
+
+    std::vector<std::shared_ptr<database::MessageItem>> messagesFromDatabase =
+        database::DatabaseManager::getInstance().findMessageItemsByReceiver(
+            clientDeviceID);
+    if (messagesFromDatabase.size() > 0) {
+      // When a client connects and requests GET for the messages first we check
+      // if there are undelivered messages in the database. If so, we are
+      // erasing the messages to deliver from rabbitMQ which are handled by
+      // DeliveryBroker.
+      DeliveryBroker::getInstance().erase(clientDeviceID);
+    }
+    for (auto &messageFromDatabase : messagesFromDatabase) {
+      tunnelbroker::GetResponse response;
+      response.set_fromdeviceid(messageFromDatabase->getFromDeviceID());
+      response.set_payload(messageFromDatabase->getPayload());
+      if (!writer->Write(response)) {
+        throw std::runtime_error(
+            "gRPC: 'Get' writer error on sending data to the client");
+      }
+      database::DatabaseManager::getInstance().removeMessageItem(
+          messageFromDatabase->getMessageID());
+    }
     while (1) {
       messageToDeliver = DeliveryBroker::getInstance().pop(clientDeviceID);
       tunnelbroker::GetResponse response;
@@ -208,9 +238,9 @@
       }
       comm::network::AmqpManager::getInstance().ack(
           messageToDeliver.deliveryTag);
-      if (DeliveryBroker::getInstance().isEmpty(clientDeviceID)) {
-        DeliveryBroker::getInstance().erase(clientDeviceID);
-      }
+      database::DatabaseManager::getInstance().removeMessageItem(
+          messageToDeliver.messageID);
+      DeliveryBroker::getInstance().deleteQueueIfEmpty(clientDeviceID);
     }
   } catch (std::runtime_error &e) {
     LOG(ERROR) << "gRPC: "