Skip to content
OutageDeck

Incident detail

Outlook 365 Login Issues

Outlook 365 Login Issues

Resolved incidentCritical0 affected services

Timeline window

to

Timeline

Incident updates

Updates are normalized from the official source chronology so timeline changes remain easy to scan.

  1. Identified

    We have identified an issue with logins affecting customers using Microsoft's Azure Active Directory service. This can affect users that have signed up for Calendly using the Outlook 365 service and prevent them from logging into the application. Our team has identified a fix and is working on resolving the issue.

  2. Identified

    The issue appears to only affect a small subset of users and is intermittent in nature. If you experience problems logging in, please refresh and try again.

  3. Identified

    The root cause of this issue appears to be an outage in Microsoft's Azure cloud services. We will provide updates as we receive them.

  4. Resolved

    DNS issues affecting logins using the Outlook 365 service appear to have been resolved. If you experience any further issues, please reach out to support@calendly.com

  5. Monitoring

    Microsoft engineering teams have identified a DNS issue and have failed over to an alternative DNS provider. The login issues with the Calendly platform appear to be fixed. We are monitoring closely and will provide any further updates as necessary.