{"id":17135,"date":"2026-07-02T07:01:58","date_gmt":"2026-07-01T22:01:58","guid":{"rendered":"https:\/\/m365jp.net\/?p=17135"},"modified":"2026-07-02T07:03:56","modified_gmt":"2026-07-01T22:03:56","slug":"servicerestored-ex1409958-exchange-online-some-users-may-encounter-crashes-in-the-classic-outlook-desktop-app-when-right-clicking-in-an-email-message","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-07-02-servicerestored-ex1409958-exchange-online-some-users-may-encounter-crashes-in-the-classic-outlook-desktop-app-when-right-clicking-in-an-email-message","title":{"rendered":"[serviceRestored] EX1409958 | Exchange Online | Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message"},"content":{"rendered":"
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EX1409958 | Exchange Online | Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have encountered crashes in the classic Outlook desktop app when right clicking in an email message.<\/td>\n<\/tr>\n
Last Updated<\/th>\n07\/01\/2026 21:18:05<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/29\/2026 23:59:00<\/td>\n<\/tr>\n
End Time<\/th>\n07\/01\/2026 20:52:44<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message <\/p>\n

User impact: Users may have encountered crashes in the classic Outlook desktop app when right clicking in an email message. <\/p>\n

More info: This issue affected users on Current Channel or Monthly Enterprise Channel version 2605. <\/p>\n

While the team focused on remediation, users with access to the new Outlook desktop app or Outlook on the web could use these apps to bypass the impact. As an alternative option to more quickly self-mitigate and allow use of the classic Outlook app, we recommended that users could update to version 2606, which wasn’t affected by this problem. <\/p>\n

Final status: Following our completed change reversion, our internal service telemetry validated that the impact has been remediated. Any user that continues to experience crashes in classic Outlook should restart their device so our changes can be applied. <\/p>\n

Scope of impact: Some users on the Current Channel or Monthly Enterprise Channel version 2605 that right-clicked email messages in classic Outlook desktop may have been impacted. <\/p>\n

Start time: Monday, June 29, 2026, at 11:59 PM UTC <\/p>\n

End time: Wednesday, July 1, 2026, at 3:54 PM UTC <\/p>\n

Root cause: A recent update to improve accessibility introduced an impacting code error. <\/p>\n

Next steps:
-We’re further analyzing the offending accessibility change and the code error it introduced so we can improve our pre-deployment testing and validation processes.<\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

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