diff --git a/src/data/communication.rs b/src/data/communication.rs
index 0620c36..2f8c689 100644
--- a/src/data/communication.rs
+++ b/src/data/communication.rs
@@ -355,22 +355,22 @@ impl CommunicationValue {
             object! {
                 id: self.id.to_string(),
                 type: format!("{:?}", self.comm_type),
-                sender: self.sender.to_string(),
-                receiver: self.receiver.to_string(),
+                sender: self.sender,
+                receiver: self.receiver,
                 data: jdata
             }
         } else if self.sender > 0 {
             object! {
                 id: self.id.to_string(),
                 type: format!("{:?}", self.comm_type),
-                sender: self.sender.to_string(),
+                sender: self.sender,
                 data: jdata
             }
         } else if self.receiver > 0 {
             object! {
                 id: self.id.to_string(),
                 type: format!("{:?}", self.comm_type),
-                receiver: self.receiver.to_string(),
+                receiver: self.receiver,
                 data: jdata
             }
         } else {
diff --git a/src/rho/client_connection.rs b/src/rho/client_connection.rs
index 8f97671..20f90a4 100644
--- a/src/rho/client_connection.rs
+++ b/src/rho/client_connection.rs
@@ -357,9 +357,8 @@ impl ClientConnection {
 
     /// Forward message to Iota
     async fn forward_to_iota(&self, cv: CommunicationValue) {
-        let user_id = self.get_user_id().await;
         if let Some(rho_conn) = self.get_rho_connection().await {
-            let updated_cv = cv.with_sender(user_id);
+            let updated_cv = cv.with_sender(self.get_user_id().await);
             rho_conn.message_to_iota(updated_cv).await;
         }
     }
diff --git a/src/rho/iota_connection.rs b/src/rho/iota_connection.rs
index 1293328..53352ac 100644
--- a/src/rho/iota_connection.rs
+++ b/src/rho/iota_connection.rs
@@ -15,7 +15,6 @@ use std::{
 use tokio::sync::RwLock;
 use tokio_util::compat::Compat;
 use tungstenite::Utf8Bytes;
-use uuid::Uuid;
 
 use super::{rho_connection::RhoConnection, rho_manager};
 use crate::{
@@ -273,21 +272,35 @@ impl IotaConnection {
     async fn handle_forward_message(&self, cv: CommunicationValue) {
         let receiver_id = cv.get_receiver();
         let sender_id = cv.get_sender();
-        if !self.get_user_ids().await.contains(&sender_id) {
-            self.send_message(CommunicationValue::new(
-                CommunicationType::error_invalid_user_id,
-            ))
-            .await;
-            return;
-        }
 
-        if let Some(target_rho) = rho_manager::get_rho_con_for_user(receiver_id).await {
-            target_rho.message_to_iota(cv).await;
+        if self.get_user_ids().await.contains(&receiver_id) {
+            if let Some(target_rho) = self.get_rho_connection().await {
+                target_rho.message_to_iota(cv).await;
+            } else {
+                let error = CommunicationValue::new(CommunicationType::error)
+                    .with_id(cv.get_id())
+                    .with_sender(cv.get_sender());
+                self.send_message(error).await;
+            }
+        } else if self.get_user_ids().await.contains(&sender_id) {
+            if let Some(target_rho) = rho_manager::get_rho_con_for_user(receiver_id).await {
+                target_rho.message_to_iota(cv).await;
+            } else {
+                let error = CommunicationValue::new(CommunicationType::error_no_iota)
+                    .with_id(cv.get_id())
+                    .with_sender(cv.get_sender());
+                self.send_message(error).await;
+            }
         } else {
-            let error = CommunicationValue::new(CommunicationType::error_no_iota)
-                .with_id(cv.get_id())
-                .with_sender(cv.get_sender());
-            self.send_message(error).await;
+            self.send_message(
+                CommunicationValue::new(CommunicationType::error_invalid_user_id).add_data(
+                    DataTypes::error_type,
+                    JsonValue::String(
+                        "You are sending to another User without authority.".to_string(),
+                    ),
+                ),
+            )
+            .await;
         }
     }
 
diff --git a/src/rho/rho_connection.rs b/src/rho/rho_connection.rs
index 6905c0c..aac69de 100644
--- a/src/rho/rho_connection.rs
+++ b/src/rho/rho_connection.rs
@@ -126,15 +126,12 @@ impl RhoConnection {
     pub async fn message_to_client(&self, cv: CommunicationValue) {
         let connections = self.client_connections.read().await;
         for connection in connections.iter() {
-            connection.send_message(&cv).await;
+            if connection.get_user_id().await == cv.receiver {
+                connection.send_message(&cv).await;
+            }
         }
     }
 
-    /// Send message to Iota as string
-    pub async fn message_to_iota_str(&self, message: &str) {
-        self.iota_connection.send_message_str(message).await;
-    }
-
     /// Send message to Iota
     pub async fn message_to_iota(&self, cv: CommunicationValue) {
         self.iota_connection.send_message(cv).await;