diff --git a/‎lib/mailer/index.js‎
Lines changed: 5 additions & 0 deletions b/‎lib/mailer/index.js‎
Lines changed: 5 additions & 0 deletions
diff --git a/‎lib/smtp-pool/index.js‎
Lines changed: 4 additions & 0 deletions b/‎lib/smtp-pool/index.js‎
Lines changed: 4 additions & 0 deletions
@@ -87,6 +87,11 @@ class Mail extends EventEmitter {
             this.transporter.on('idle', (...args) => {
                 this.emit('idle', ...args);
             });
+
+            // indicates if the sender has became idle and all connections are terminated
+            this.transporter.on('clear', (...args) => {
+                this.emit('clear', ...args);
+            });
         }
 
         /**
 
@@ -406,6 +406,10 @@ class SMTPPool extends EventEmitter {
                     this._continueProcessing();
                 }, 50);
             } else {
+                if (!this._closed && this.idling && !this._connections.length) {
+                    this.emit('clear');
+                }
+
                 this._continueProcessing();
             }
         });