diff --git a/src/protocol/SendInstantMessage.cpp b/src/protocol/SendInstantMessage.cpp
index 2df2902..9475a94 100644
--- a/src/protocol/SendInstantMessage.cpp
+++ b/src/protocol/SendInstantMessage.cpp
@@ -24,5 +24,9 @@ SendInstantMessage::SendInstantMessage(
         throw ChatResultException(ChatResultCode::DESTAVATARDOESNTEXIST);
     }
 
+    if (destAvatar->IsIgnored(srcAvatar)) {
+        throw ChatResultException(ChatResultCode::IGNORING);
+    }
+
     client->SendInstantMessageUpdate(srcAvatar, destAvatar, request.message, request.oob);
 }
diff --git a/src/protocol/SendPersistentMessage.cpp b/src/protocol/SendPersistentMessage.cpp
index 2856848..2b437c6 100644
--- a/src/protocol/SendPersistentMessage.cpp
+++ b/src/protocol/SendPersistentMessage.cpp
@@ -26,6 +26,10 @@ SendPersistentMessage::SendPersistentMessage(GatewayClient * client, const Reque
             throw ChatResultException{ChatResultCode::SRCAVATARDOESNTEXIST};
         }
 
+        if (destAvatar->IsIgnored(srcAvatar)) {
+            throw ChatResultException(ChatResultCode::IGNORING);
+        }
+
         message.header.fromName = srcAvatar->GetName();
         message.header.fromAddress = srcAvatar->GetAddress();
     } else {