add setSender method

src/PHPMailerEnhanced/PHPMailerEnhanced.php

@@ -38,6 +38,43 @@ class PHPMailerEnhanced extends PHPMailer {
         static::splitAddressName($address, $name);
         return parent::setFrom($address, $name, $auto);
     }
+    /**
+     * Set the Sender property
+     *
+     * @param string $address The address
+     * @param string $name The name (ignored)
+     *
+     * @throws Exception
+     *
+     * @return bool
+     */
+    public function setSender (string $address, string $name = ''): bool {
+        static::splitAddressName($address, $name);
+
+        $address = trim((string)$address);
+        //Don't validate now addresses with IDN. Will be done in send().
+        $pos = strrpos($address, '@');
+        if (
+            (false === $pos)
+            || ((!$this->has8bitChars(substr($address, ++$pos)) || !static::idnSupported())
+                && !static::validateAddress($address))
+        ) {
+            $error_message = sprintf(
+                '%s (From): %s',
+                $this->lang('invalid_address'),
+                $address
+            );
+            $this->setError($error_message);
+            $this->edebug($error_message);
+            if ($this->exceptions) {
+                throw new Exception($error_message);
+            }
+            return false;
+        }
+
+        $this->Sender = $address;
+        return true;
+    }
     /**
      * @inheritDoc
      */