EX649175: Some users may be unable to send Exchange Online email messages
- Posted by James Allat
- On 18th July 2023
- 0
Microsoft has reported the following issues with Exchange online: Some users may be unable to send Exchange Online email messages User impact: Users may be unable to send Exchange Online email messages. More info: Affected users may receive the following error “503 5.5.1 bad sequence of commands” Current status: We’re reviewing service monitoring telemetry to […]