<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Users\Item\GetMailTips\GetMailTipsPostRequestBody;
use Microsoft\Graph\Generated\Models\MailTipsType;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new GetMailTipsPostRequestBody();
$requestBody->setEmailAddresses(['danas@contoso.com', 'fannyd@contoso.com', ]);
$requestBody->setMailTipsOptions(new MailTipsType('automaticReplies, mailboxFullStatus'));
$result = $graphServiceClient->me()->getMailTips()->post($requestBody)->wait();