Exchange Online

Microsoft started switching off Basic Authentication support for Exchange Online customers back in October. The company announced yesterday that it’s killing off Basic Authentication for the Autodiscover service on December 31, 2022. The Autodiscover protocol allows client applications to get the configuration data required to communicate with the Exchange Server. It’s used by Outlook, Exchange…

Microsoft has released cross-tenant migration capabilities for Exchange Online. The latest update brings new cross-tenant mailbox migration and cross-tenant OneDrive migration features for commercial customers. Specifically, the new features provide a faster and cost-effective solution to help organizations migrate user data between tenants. The cross-tenant mailbox migration feature lets IT admins move end users to…

The news that Microsoft is working on cloud signatures for Outlook for Windows is welcome. The venerable Outlook client has long stored its signature information in the system registry, which makes it hard to move signatures from PC to PC. On the other hand, OWA stores its signatures in mailboxes, so the same signature is used no matter where you log in. Of course, OWA is a simpler client (no profiles, for instance), but it should be eminently possible to store everything Outlook needs in the cloud. At least for Outlook clients connected to Exchange Online…

Microsoft has announced that Exchange Online and Outlook will soon synchronize email signatures across devices. Does this mean that the ISV market for email autosignature products is over? I don’t think so because there’s lots of other things to do with email signatures once device synchronization is handled.

Microsoft is getting ready to end support for Client Access Rules (CARs) in Exchange Online. The Exchange team has warned customers that support for this feature will be removed from the service in September 2023. Client Access Rules allow IT admins to control access to their Exchange servers based on client properties or client access…

Microsoft has unveiled a recent cybersecurity attack that allowed the threat actors to compromise Exchange Online. The attacker abused unsecured administrator accounts to gain access to the cloud tenants and created malicious OAuth applications to reconfigure the victim’s email server to send phishing emails. OAuth is an open-standard authorization protocol that enables users to share…

Microsoft is once again notifying customers that it will finally disable basic authentication support in Exchange Online starting October 1, 2022. The company is also giving organizations an option to pause the deprecation of select email connection protocols until the end of this year. In 2019, Microsoft first announced its plans to retire basic authentication…

Google has announced an important configuration change for Google Workspace customers. The company recommends that organizations should enable OAuth 2.0 to continue using Google Calendar Interop with Exchange Online after Microsoft disables Basic Authentication in October. Google Calendar Interop is a useful tool that allows Exchange Online and Google Calendar to work together. The feature…

In this guide, we’ll explain the technology behind plus addressing and how to enable and use plus email addresses with Exchange Online. The background of plus addressing The idea of plus addressing has existed for many years. The idea is simple enough. An email address is divided into a local part (resolved within an organization)…

If you’re having issues with Microsoft 365 services right now, you’re not alone. The Redmond giant has acknowledged that its multiple Microsoft 365 offerings have been hit by another outage this morning, preventing users from accessing their Exchange Online mailboxes. Microsoft confirmed on Twitter that it is actively investigating the problem, and some users should…