Upcoming scheduled maintenance for Library Search, Rialto and Alma:
Estimated Start time: Saturday 2nd May 2026 11:00pm BST
Estimated End time: Sunday 3rd May 2026 02:00am BST
Past Incidents
18th July 2023
Microsoft O365Some users may be unable to send Exchange Online email
This issue should now be resolved.
From MS: "We’ve identified that a change to the free/busy infrastructure resulted in impact to the Exchange online mail flow infrastructure. We’re identifying a plan to mitigate impact and restore mail flow."
Affected users may receive the following error "503 5.5.1 bad sequence of commands"
