Exchange Online
Microsoft: Exchange Online flags legitimate emails as phishing
Microsoft is investigating an ongoing Exchange Online issue that mistakenly flags legitimate emails as phishing and quarantines them. The incident began on February 5 and continues to affect Exchange Online customers, preventing them from sending or receiving emails. “Some users’ legitimate email messages are being marked as phish and quarantined in Exchange Online,” Microsoft said in […]
Microsoft to shut down Exchange Online EWS in April 2027
Microsoft announced today that the Exchange Web Services (EWS) API for Exchange Online will be shut down in April 2027, after nearly 20 years. EWS is a cross-platform API for developing apps that can access Exchange mailbox items, such as email messages, meetings, and contacts, retrieved from various sources, including Exchange Online and on-premises editions […]
Microsoft: Outlook for iOS crashes, freezes due to coding error
Microsoft confirmed today that Outlook mobile may crash or freeze when launched on iPad devices due to a coding error. While this known issue may affect all users of Outlook for iOS version 5.2602.0 on an iPad, Microsoft says that they can work around it by launching Outlook after enabling Airplane Mode. “The latest Outlook […]
Microsoft Exchange Online outage blocks access to mailboxes via IMAP4
Microsoft is working to fix an Exchange Online service outage that intermittently prevents users from accessing their mailboxes via the Internet Mailbox Access Protocol 4 (IMAP4). The incident (tracked under EX1215307) began on January 1st at 19:00 UTC, with Microsoft noting that other connection methods are not affected and advising those impacted that retries may help […]
Microsoft cancels plans to rate limit Exchange Online bulk emails
Microsoft announced today that it has canceled plans to impose a daily limit of 2,000 external recipients on Exchange Online bulk email senders. The change was announced in April 2024, when Microsoft said that it would add new External Recipient Rate (ERR) limits starting January 2025 to fight spam, with plans to begin enforcing the limit on […]
Microsoft to block Exchange Online access for outdated mobile devices
Microsoft announced on Monday that it will soon block mobile devices running outdated email software from accessing Exchange Online services until they’re updated. As the Exchange Team explained, devices running Exchange ActiveSync versions below 16.1 will no longer be able to connect to Microsoft’s cloud email service after March 1, 2026. Exchange ActiveSync (EAS) is a Microsoft Exchange […]
Microsoft: Exchange Online outage blocks access to Outlook mailboxes
Microsoft is investigating an Exchange Online service outage that is preventing customers from accessing their mailboxes using the classic Outlook desktop client. Microsoft first acknowledged the incident (tracked under EX1189820) at 09:57 AM UTC and, according to user reports on the DownDetector outage monitoring platform, it’s also causing server connection and login issues. “Users may be unable to […]
Microsoft 365 outage blocks access to Teams, Exchange Online
Microsoft is working to resolve an ongoing outage preventing users from accessing Microsoft 365 services, including Microsoft Teams, Exchange Online, and the admin center. While Redmond has yet to disclose which regions are currently affected, it currently tracks it on the Service Health Dashboard as an incident, which is commonly used to describe a critical […]
Microsoft enables Exchange Online auto-archiving by default
Microsoft is enabling threshold-based auto-archiving by default in Exchange Online to prevent email flow issues caused by mailboxes filling up faster than expected. While users can also configure messaging records management (MRM) time-based archive policies that provide automatic archival every two years, for example, these policies aren’t effective when dealing with high volumes of incoming emails […]
New bug in classic Outlook can only be fixed via Microsoft support
Microsoft is investigating a known issue that causes the classic Outlook email client to crash upon launch, which can only be resolved via Exchange Online support. According to a recently published support document, this impacts Microsoft 365 customers who use classic Outlook on Windows systems. While the company didn’t specify the root cause of this ongoing issue, […]