first commit

common/mail/layouts/text.php

@@ -0,0 +1,12 @@
+<?php
+
+/** @var \yii\web\View $this view component instance */
+/** @var \yii\mail\MessageInterface $message the message being composed */
+/** @var string $content main view render result */
+
+?>
+<?php $this->beginPage() ?>
+<?php $this->beginBody() ?>
+<?= $content ?>
+<?php $this->endBody() ?>
+<?php $this->endPage() ?>