add initial project files.

lib/Mail/UTF8_Mailer.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Orrisroot\Mail;
+
+class UTF8_Mailer
+{
+    /**
+     * send mail.
+     *
+     * @param Address $form    from email address
+     * @param array   $tos     to email addresses
+     * @param string  $subject subject
+     * @param string  $body    mail body
+     *
+     * @return bool false if failure
+     */
+    public static function sendMail(Address $from, array $tos, string $subject, string $body): bool
+    {
+        $mailer = new \PHPMailer\PHPMailer\PHPMailer();
+        $mailer->CharSet = 'UTF-8';
+        $mailer->setFrom($from->getEmail(), $from->getName());
+        $mailer->Subject = $subject;
+        $mailer->Body = $body;
+        foreach ($tos as $to) {
+            $mailer->AddAddress($to->getEmail(), $to->getName());
+        }
+
+        return $mailer->Send();
+    }
+}