connection.diff

diff --git a/connection.js b/connection.js
index 7a00985..21b7ac1 100644
--- a/connection.js
+++ b/connection.js
@@ -927,12 +927,15 @@ Connection.prototype.rcpt_ok_respond = function (retval, msg) {
 }
 
 Connection.prototype.rcpt_respond = function(retval, msg) {
+    var rcpt = this.transaction.rcpt_to[this.transaction.rcpt_to.length - 1];
+    if (retval === constants.ok) {
+        this.transaction.notes.ok_domains[rcpt.host] = true;
+    }
     if (retval === constants.cont && this.relaying) {
         retval = constants.ok;
     }
 
     var self = this;
-    var rcpt = this.transaction.rcpt_to[this.transaction.rcpt_to.length - 1];
     var dmsg = "recipient " + rcpt.format();
     if (retval !== constants.ok) {
         this.lognotice(dmsg + ' ' + [