Exchange Online

Microsoft is implementing a new tenant-wide cap of 3,000 dynamic distribution groups (DDGs) for Exchange Online customers. Starting next month, organizations hitting this limit must delete existing DDGs before creating new ones. In Exchange Online, dynamic distribution groups (DDGs) are special types of mail-enabled groups that automatically update their membership based on specific criteria. Unlike…

Microsoft has rolled out new tenant-level outbound email limits, known as the Tenant External Recipient Rate Limit (TERRL), for Exchange Online customers. This update is part of a broader plan to enforce external recipient rate (ERR) limits for individual mailboxes starting in October 2025. In Exchange Online, Tenant External Recipient Rate Limit (TERRL) is a…

Microsoft is preparing to retire Exchange Web Services (EWS) for Exchange Online, with all EWS requests set to be blocked starting October 1, 2026. The company is also implementing a major update to the EWSEnabled tenant-wide switch, changing how organizations manage EWS access. What is Exchange Web Services (EWS)? Exchange Web Services (EWS) is an…

Microsoft has announced plans to retire the Search-MailboxAuditLog and New-MailboxAuditLogSearch cmdlets in Exchange Online. The company will deprecate both cmdlets in favor of the Search-UnifiedAuditLog cmdlet in March this year. The Search-MailboxAuditLog and New-MailboxAuditLogSearch cmdlets in Microsoft Exchange Online are used for searching mailbox audit logs. The Search-MailboxAuditLog cmdlet performs a synchronous search of mailbox…

Microsoft is changing the way the Search-UnifiedAuditLog cmdlet works in Exchange Online. Starting in January 2025, the HighCompleteness parameter, which administrators can currently toggle between true and false, will be permanently set to true for all queries. What is the Search-UnifiedAuditLog cmdlet? The Search-UnifiedAuditLog cmdlet is a PowerShell command that is used in Exchange Online…

Microsoft has announced the public preview of its enhanced Message Trace experience in the Exchange admin center (EAC) for Exchange Online. This feature has started rolling out now and it’s expected to reach general availability by the end of the month. What is Message Trace? A message trace is a feature that enables administrators to…

Microsoft has announced plans to retire Client Access Rules (CARs) in Exchange Online for all tenants by September 2025. The company urges organizations to transition to Conditional Access with Continuous Access Evaluation (CAE) for improved security and compliance. Client Access Rules in Exchange Online allow organizations to control access to their email services based on…

Microsoft has released a new feature that adds support for concurrent license assignments in Exchange Online. The latest release enables organizations to assign more than one Exchange Online license to each Azure Active Directory (Azure AD) user. Previously, the Microsoft 365 admin center and Azure AD PowerShell restricted IT admins from allocating concurrent Exchange Online…

Microsoft has released a new delicensing resiliency feature for Exchange Online customers, providing better protection against the accidental removal of user licenses. This feature includes a 30-day grace period, giving administrators more time to address issues and prevent disruptions in mailbox access. In Exchange Online, each user requires a license to access their mailbox. If…

Microsoft has announced the general availability of inbound SMTP DANE with DNSSEC for Exchange Online customers. This feature is designed to strengthen email security by integrating two advanced security standards. Microsoft introduced the public preview of DANE with DNSSEC support for inbound email in June 2024. SMTP DANE (DNS-based Authentication of Named Entities) is a…

Microsoft has rolled out several improvements for the Message Recall feature in Exchange Online. The latest update brings new capabilities like optional recall notifications, configurable recall limits, and support for external round-trip routing. Microsoft released the new cloud-based Message Recall feature for Exchange Online customers in February 2023. It’s more than twice as effective as…

In this article, Bharat Bhushan shows you how to recover deleted emails in Exchange Server. This article is sponsored by Stellar Info. Key takeaway It is simple to restore deleted emails from the Deleted Items folder in Outlook and Outlook on the Web (OWA). Follow these steps: Users may delete emails or other mailbox items…