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Tag: exchange online

3 articles

Empty office with computer screens and servers, laptop shows blurred email inbox.

Microsoft Battles Exchange Online Mailbox Quarantine Glitch

Microsoft is working to resolve a frustrating glitch in Exchange Online that has caused some mailboxes to be incorrectly quarantined, blocking users from receiving emails and disrupting access to calendars. The issue, which began on July 19, has left affected users unable to send or receive emails and access their calendars.

Analyst 207
Secure server room with rows of computer servers and networking equipment.

Microsoft to Discontinue Legacy TLS Versions in Exchange Online by July 2026

Microsoft is putting the brakes on outdated security protocols, announcing that it'll start blocking legacy TLS 1.0 and 1.1 connections to Exchange Online in July 2026 - so it's time to upgrade and stay secure! This move marks the end of an era for older clients that still rely on these outdated protocols.

Analyst 207
Rows of computer servers and equipment in a well-lit, modern server room with ambient daylight from large windows.

Microsoft Phases Out Legacy TLS in Exchange Online

Microsoft is phasing out support for outdated TLS versions (TLS 1.0 and TLS 1.1) for POP3 and IMAP4 connections to Exchange Online, starting July 2026, to boost security. From then on, only TLS 1.2 or later will be accepted, making older connections obsolete.

Analyst 207