Monday January 4, 2021


Trouble with Google Calendar, Outlook Calendar, and some email features

Issue summary:
On January 4, 2021 from around 10:00 a.m. to 12:30 p.m. PST, Google Calendar, Outlook Calendar, email notifications, email forwarding and replies, and creating new email addresses for channels were fully unavailable.

While working to resolve issues involved with the outage on January 4, 2021, we determined the best course of action was to temporarily disable these features. We wanted to work on remediations while minimizing risk to all systems involved.

We worked to restore service to these features and reached a full resolution by 7:16 p.m. PST, but some features became available earlier on.

Note: We've updated this summary and title, as we've gained a better understanding of what features were impacted and when.

6:55 PM PST

Both Outlook Calendar and Google Calendar should now be working as expected.

We're terribly sorry for the disruption, and we very much appreciate your patience. We'll follow up with a summary as soon as we can.

9:05 PM PST

You should now be able to reply to notification emails delivered after 4:45 p.m. PST.

We're still working to bring the calendar apps fully back online. We'll return with more information as soon as we have news to share.

Thank you for bearing with us.

5:18 PM PST

Setting up a new email forwarding rule right now may also be affected by the email notifications issue. Our team is continuing to investigate this.

We're close to resolving the issue with the calendar apps, and we'll provide an update as soon as we have one.

4:00 PM PST

Users who've joined a workspace and been invited to a workspace should now be receiving email notifications successfully. However, they won't be able to reply to the emails.

The issues with Google Calendar and Outlook Calendar are still being worked on. We'll be back once we have some more information.

2:50 PM PST

We're closer to getting Google Calendar working as expected, but we're not at a resolution yet. We're also continuing to work to resolve the trouble with Outlook Calendar and email notifications.

1:47 PM PST

For users who've joined a workspace, email notifications should be delivered. However, these users won't be able to reply to the emails.

For users who've been invited to a workspace, but haven't joined, email notifications won't be sent at this time.

We'll be back once we have more information about the trouble with the calendars and email notifications.

12:46 PM PST

Google Calendar and Outlook Calendar aren't working as expected, and some email notifications (e.g. a notification of a new direct message in Slack) are failing to send. We're working to resolve this issue, and we're sorry for the trouble.

12:12 PM PST

Services affected