下記のドキュメントに記載している、配信メールのバウンス判定時の「信頼済みドメイン」について、日本の対応状況についてご案内致します。
バウンスメール管理
現在の信頼できるドメインは、Gmail.com、Hotmail.com (Hotmail.fr など、すべてのアクティブな Hotmail (ホットメール) 国別ドメインを含む)、 および nyc.rr.com などのすべてのアクティブな Road Runner (ロードランナー) ドメインです。 必要に応じて信頼できるドメインが時々更新されるため、定期的にここでチェックしてください。
000381960

We use three kinds of cookies on our websites: required, functional, and advertising. You can choose whether functional and advertising cookies apply. Click on the different cookie categories to find out more about each category and to change the default settings.
Privacy Statement
Required cookies are necessary for basic website functionality. Some examples include: session cookies needed to transmit the website, authentication cookies, and security cookies.
Functional cookies enhance functions, performance, and services on the website. Some examples include: cookies used to analyze site traffic, cookies used for market research, and cookies used to display advertising that is not directed to a particular individual.
Advertising cookies track activity across websites in order to understand a viewer’s interests, and direct them specific marketing. Some examples include: cookies used for remarketing, or interest-based advertising.