diff --git a/backend/src/api/import-from-matrix.js b/backend/src/api/import-from-matrix.js
index 979369c..569acf7 100644
--- a/backend/src/api/import-from-matrix.js
+++ b/backend/src/api/import-from-matrix.js
@@ -4,6 +4,10 @@ const { matrixUserToAuthorAddress } = require('../util/db');
 const write = require('./write');
 const { dao } = require('../util/contracts');
 
+const {
+  ETH_NETWORK,
+} = process.env;
+
 const addPostWithRetry = async (authors, hash, citations, retryDelay = 5000) => {
   try {
     await dao.addPost(authors, hash, citations);
@@ -76,6 +80,8 @@ module.exports = async (req, res) => {
     console.log(`Post already added for matrix event ${eventUri}`);
   } else {
     console.log(`Added post to blockchain for matrix event ${eventUri}`);
+    // Send matrix event reply to the targeted event, notifying of this blockchain post
+    await client.replyNotice(roomId, event, `Added to ${ETH_NETWORK} blockchain as post ${hash}`);
   }
 
   res.json({ postId: hash, alreadyAdded });