Microsoft - Potential issues accessing mailboxes or sending email via one or more connection methods
Subscribe
Investigating - Microsoft is investigating a service-wide issue affecting Exchange Online. Some users may be unable to access their mailboxes or send email messages using Outlook on the web or desktop. This is not specific to McMaster.
Oct 01, 2025 - 13:53 EDT
Oct 01, 2025 - 13:53 EDT
About This Site
Welcome to the McMaster University Technology Services Status Page. Here you will find current information about the status of our enterprise services/systems.
To see what services are scheduled for maintenance, view our Monthly Maintenance Schedule
For any questions or concerns, please contact UTS
You can also follow us on Twitter: @McMasterUTS
Avenue to Learn
Operational
Campus Wide Login
Operational
Confluence (Collaborate)
?
Operational
Customer Relationship Management (CRM)
Operational
DBHSC Call Centre
Operational
JIRA
Operational
JIRA Service Desk
?
Operational
Jira Software
?
Operational
LinkedIn Learning
?
Operational
MacDrive
?
Operational
MacIAM
Operational
Microsoft Office 365
Degraded Performance
Email
Degraded Performance
Teams
Operational
Onedrive
Operational
SharePoint
Operational
Mosaic
Operational
Campus
?
Operational
Finance
?
Operational
Human Resources
Operational
Hyperion
?
Operational
Network Shared Drives
?
Operational
Network Services
Operational
Network Wired
Operational
Network Wireless
?
Operational
Virtual Private Network (VPN)
?
Operational
Campus/onsite internet connectivity
?
Operational
DNS/DHCP Services (including BlueCat Address Management)
?
Operational
Oracle Databases
Operational
SCCM
Operational
SecureTransport (Managed File Transfer)
Operational
Staff and Faculty Directory
?
Operational
Telecommunications
Operational
Voice Services
?
Operational
Call Centre (David Braley)
Operational
UTS Labs
?
Operational
Zoom
Operational
Other Campus Wide Systems
Operational
Role Based Tool
Operational
EDL
Operational
McMaster University Websites
Operational
SecureTransport (Managed File Transfer)
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Scheduled Maintenance
ORION Network Maintenance – October 14–15 Oct 14, 2025 22:00 - Oct 15, 2025 06:00 EDT
ORION will be performing scheduled network maintenance from Tuesday, October 14 at 10:00 PM to Wednesday, October 15 at 6:00 AM.
During this window, ORION network connectivity will experience multiple interruptions as software upgrades are performed. Internet service may be affected at times; however, our backup Internet connection will remain available throughout the maintenance period.
Access to cloud environments such as Oracle Cloud Infrastructure (Mosaic) and Azure may also be impacted.
We appreciate your understanding as this necessary work is completed to maintain reliable network operations.
If you have any questions, please contact UTS at https://uts.mcmaster.ca/contact-us/
Posted on Oct 08, 2025 - 18:49 EDT
During this window, ORION network connectivity will experience multiple interruptions as software upgrades are performed. Internet service may be affected at times; however, our backup Internet connection will remain available throughout the maintenance period.
Access to cloud environments such as Oracle Cloud Infrastructure (Mosaic) and Azure may also be impacted.
We appreciate your understanding as this necessary work is completed to maintain reliable network operations.
If you have any questions, please contact UTS at https://uts.mcmaster.ca/contact-us/
Posted on Oct 08, 2025 - 18:49 EDT