| EX1281449 |
Users may be unable to reply to email messages from a pop-up window in Outlook on the web
Exchange Onlineadvisory
|
Resolved |
14 Apr 2026 |
02 May 2026 |
| EX1279815 |
Admins' search parameters may be missing after performing a group search in the Exchange admin center
Exchange Onlineadvisory
|
Resolved |
14 Apr 2026 |
28 Apr 2026 |
| EX1280763 |
Admins may be unable to progress mailbox migrations in Exchange Online
Exchange Onlineadvisory
|
Resolved |
14 Apr 2026 |
27 Apr 2026 |
| EX1280216 |
Admins may have experienced failures when running admin operations the admin portal in Exchange Online
Exchange Onlineadvisory
|
Resolved |
13 Apr 2026 |
18 Apr 2026 |
| EX1275040 |
Users may be unable to download or open email attachments in Outlook on the web
Exchange Onlineadvisory
|
Resolved |
09 Apr 2026 |
17 Apr 2026 |
| EX1268771 |
Users may be intermittently unable to access their Exchange Online mailboxes in some connection methods.
Exchange Onlineadvisory
|
Resolved |
17 Mar 2026 |
16 Apr 2026 |
| EX1234720 |
Some admins may be unable to change some users' Exchange Online mailbox settings when using a PowerShell cmdlet
Exchange Onlineadvisory
|
Resolved |
15 Jan 2026 |
14 Apr 2026 |
| EX1260260 |
Users may be unable to access archived email messages in Outlook on the web
Exchange Onlineadvisory
|
Resolved |
24 Mar 2026 |
14 Apr 2026 |
| EX1213792 |
Admins couldn’t upgrade groups from Distribution Lists to Unified Groups using PowerShell or the Exchange admin center
Exchange Onlineadvisory
|
Resolved |
06 Jan 2026 |
14 Apr 2026 |
| EX1278714 |
Some users may be unable to access email messages in Outlook Mobile when connecting to Exchange on‑premises
Exchange Onlineincident
|
Resolved |
10 Apr 2026 |
13 Apr 2026 |
| EX1232513 |
Some admins may be unable to perform tenant to tenant migrations and offboarding moves in the Exchange admin center
Exchange Onlineadvisory
|
Resolved |
14 Feb 2026 |
03 Apr 2026 |
| EX1256020 |
Some users may be intermittently unable to access their Exchange Online mailboxes in some connection methods
Exchange Onlineincident
|
Resolved |
12 Mar 2026 |
01 Apr 2026 |
| EX1259460 |
Some users may be unable to access custom add-ins through any Exchange Online connection method
Exchange Onlineadvisory
|
Resolved |
12 Mar 2026 |
31 Mar 2026 |
| EX1255397 |
Some users may be unable to access the default add-ins in Outlook
Exchange Onlineadvisory
|
Resolved |
12 Mar 2026 |
31 Mar 2026 |
| EX1260428 |
Some users may have been unable to access their Exchange Online mailboxes using the Outlook desktop client
Exchange Onlineincident
|
Resolved |
24 Mar 2026 |
24 Mar 2026 |
| EX1259159 |
Some users’ outbound email messages may display an unexpected sender name in Exchange Online
Exchange Onlineadvisory
|
Resolved |
05 Mar 2026 |
24 Mar 2026 |
| EX1253275 |
Some users may experience issues when accessing their Exchange Online mailbox via one or more connection method
Exchange Onlineincident
|
Resolved |
16 Mar 2026 |
23 Mar 2026 |
| EX1256744 |
Admins may be unable to create shared mailboxes in Exchange Online
Exchange Onlineadvisory
|
Resolved |
20 Mar 2026 |
20 Mar 2026 |
| EX1243339 |
Users were unable to create or edit Ownerless Groups policies in Exchange Online
Exchange Onlineadvisory
|
Resolved |
12 Feb 2026 |
16 Mar 2026 |
| EX1247494 |
Some users may see increased error rates and failures when accessing app entitlement APIs within Exchange Online
Exchange Onlineadvisory
|
Resolved |
09 Mar 2026 |
10 Mar 2026 |
| EX1226910 |
Admins may be unable to complete mailbox migrations in Exchange Online
Exchange Onlineadvisory
|
Resolved |
07 Jan 2026 |
09 Mar 2026 |
| EX1237864 |
Users' auto-decline meeting settings for automatic replies may not be working in Exchange Online
Exchange Onlineadvisory
|
Resolved |
23 Feb 2026 |
06 Mar 2026 |
