Users may not receive any email notifications or messages from the Viva Engage service

Title: Users may not receive any email notifications or messages from the Viva Engage service User impact: Users may have not received any email notifications or messages from the Viva Engage service. More info: This may have impacted the following email messages from the Viva Engage service, although impact is not limited to: - Leadership announcements - Post, reply, or at-mention email notifications - Daily or weekly digests Final status: We've confirmed that an internal component responsible for facilitating the mail flow was operating at a suboptimal state. We've developed and deployed a fix to alleviate impact. After a period of monitoring the service health telemetry, we've confirmed impact has ceased. Scope of impact: Any user located in Europe that's the recipient of an email notification or message from the Viva Engage service may be impacted. Start time: Monday, May 11, 2026, at 8:00 AM UTC End time: Monday, May 11, 2026, at 9:58 PM UTC Root cause: An internal component responsible for facilitating the mail flow in Europe for the Viva Engage service was operating in a suboptimal state. Next steps: We're reviewing why an internal component responsible for facilitating the mail flow was operating in a suboptimal state to assist us in preventing similar future impact. This is the final update for the event.

Title: Users may not receive any email notifications or messages from the Viva Engage service User impact: Users may not receive any email notifications or messages from the Viva Engage service. More info: This may impact the following email messages from the Viva Engage service, although impact is not limited to: - Leadership announcements - Post, reply, or at-mention email notifications - Daily or weekly digests Current status: We've narrowed down the email delivery failures to an internal component responsible for facilitating the mail flow in Europe for the Viva Engage service that's operating in a suboptimal state. Scope of impact: Any user located in Europe that's the recipient of an email notification or message from the Viva Engage service may be impacted. Start time: Monday, May 11, 2026, at 8:00 AM UTC Next steps: An internal component responsible for facilitating the mail flow in Europe for the Viva Engage service is operating in a suboptimal state. Next update by: Monday, May 11, 2026, at 11:30 PM UTC

Title: Users may not receive any email notifications or messages from the Viva Engage service User impact: Users may not receive any email notifications or messages from the Viva Engage service. More info: This may impact the following email messages from the Viva Engage service, although impact is not limited to: - Leadership announcements - Post, reply, or at-mention email notifications - Daily or weekly digests Current status: We've identified an increase in failures occurring when email messages are being sent to end users from the Viva Engage service. We're investigating the failures to identify their source. Scope of impact: Any user located in Europe that's the recipient of an email notification or message from the Viva Engage service is impacted. Start time: Monday, May 11, 2026, at 8:00 AM UTC Next update by: Monday, May 11, 2026, at 9:30 PM UTC

Title: Users may not receive any email notifications messages from the Viva Engage service User impact: Users may not receive any email notifications or messages from the Viva Engage service. More info: This may impact the following email messages from the Viva Engage service, although impact is not limited to: - Leadership announcements - Post, reply, or at-mention email notifications - Daily or weekly digests Current status: We're investigating a potential issue with Viva Engage and checking for impact to your organization. We'll provide an update within 30 minutes.