Office 365 での TLS 1.2 の必須化について

(この記事は 2018 年 2 月 9 日に Exchange Team Blog に投稿された記事 An Update on Office 365 Requiring TLS 1.2 の翻訳です。最新情報については、翻訳元の記事をご参照ください。) Exchange Server をご利用の皆様、こんにちは。マイクロソフトでは、2017 年 12 月の発表で、Office 365 での TLS 1.0 および TLS 1.1 による通信のサポートを 2018 年 3 月 1 日に終了し、それ以降は TLS 1.2 による通信のみをサポートすることをお伝えしました。 この変更に伴い、ハイブリッド モードでオンプレミス展開を行う際はどうなるのか、共同作業プラットフォームとして Office 365 を使用しているお客様とのビジネスにどのような影響があるのかなど、詳細について多数のご質問が寄せられています。 Office 365 に TLS 1.2 を強制適用する計画については、こちらのサポート技術情報の記事 (KB4057306)…


Spam notification message

I’ve run into this a couple of times now with customers, consequently thought I’d finally get around to writing a blog post. The question is, can spam notifications be sent less than once a day? What are we talking about. In Exchange online, there is a notification message that is sent to users’ mailboxes periodically,…


Exchange Online migration reporting

This article is a follow-up to the Mailbox migration – Do it yourself guide article. It is also a product of your direct feedback, so thank you!   Every migration batch you create is listed at the Exchange Online Admin Center (EAC, recipients, migration). You can open the migration batch details and scan for the…


Exchange Hybrid Duplicate Mailboxes

Some customers have seen where they can end up with a duplicate mailbox within their hybrid environment. This can cause problems when a user, either on premises or in the cloud, has two mailboxes, one on premises and another one in Exchange Online (EXO). The good news is, there is now a work around. A…


Office 365 Weekly Digest | February 4 – 10, 2018

Welcome to the February 4 – 10, 2018 edition of the Office 365 Weekly Digest. Twelve new entries were added to the Office 365 Roadmap, with a focus on multiple enhancements for Microsoft Teams, Planner, and Yammer.  The next episode of Teams on Air is scheduled for Thursday, February 15, 2018 at 9am PT and…


Office 365 Weekly Digest | February 4 – 10, 2018

Welcome to the February 4 – 10, 2018 edition of the Office 365 Weekly Digest. Twelve new entries were added to the Office 365 Roadmap, with a focus on multiple enhancements for Microsoft Teams, Planner, and Yammer.  The next episode of Teams on Air is scheduled for Thursday, February 15, 2018 at 9am PT and…


An Update on Office 365 Requiring TLS 1.2

Hello Exchange Server followers! In December 2017 it was announced Office 365 planned to discontinue support for TLS 1.0 and TLS 1.1 connections on March 1st, 2018, and after that time only TLS 1.2 connections would be allowed when interacting with Office 365. Many of you have been asking for additional detail on what this…


Demystifying Hybrid Free/Busy: what are the moving parts?

Hybrid Free/Busy is one of those things that many people do not fully understand. If everything works well, the complexity is hidden from view and people working in various parts of organization can seamlessly work together. But if things go wrong… you will appreciate deeper understanding of what makes it work. This is why we…


Office 365 Weekly Digest | January 21 – 27, 2018

Welcome to the January 21 – 27, 2018 edition of the Office 365 Weekly Digest. 2018 is in full swing with 24 new entries in the Office 365 Roadmap, including several additions for Microsoft Stream – all different from the Stream-related items added last week. There are also a few OneDrive for Business updates, such…


Exchange online preservation policy summary

I love the cloud, yet sometimes it is not easy to keep up with the ever-changing topology. With the quickness and agility of O365 and the amazing new tools and processes, it’s an exciting time but one you must keep up with on all the changes. This article is written to help clear up some…