通过 SMTP Laravel 发送电子邮件时出错

Question

UTF8 格式错误的字符，SMTP 发送电子邮件错误 我正在尝试从 laravel 发送电子邮件，但出现错误，有人可以帮助我吗？

HomeController.php

/**
     * Send the client email.
     *
     * @return \Illuminate\Contracts\Support\Renderable
     */
    public function send(Request $request)
    {
        $cliente = Clientes::create($request->all());

        $pagamentos = collect($request->pagamentos);

        $pagamentos->map(function($pagamento) use ($cliente){
            $pagamento['cliente_id'] = $cliente['id'];
            Pagamentos::create($pagamento);
        });

        Mail::to('danilloleaolopes10@gmail.com')->send(new SendEmailUser());

        return response()->json(['Cliente inserido com sucesso']);
    }

SendEmailUser.php

public function build()
    {
        return $this->from('danilloleaolopes10@gmail.com')
                ->subject('Recibo de compra XiaomiStore BH')
                ->view('emails.recibo');
    }