# \[office365\] Office channels offline preventing emails being sent or received - Provider: [Front](https://down.guide/front) - Level: confirmed - Impact: Partial outage - lasted 4d 5h - started 2026-05-28 18:24 UTC - O365 - id: DWN-0b7e0ce14d - Official page: https://stspg.io/8dkmff418pg3 ## Updates from Front ### 2026-05-28 18:24 UTC: investigating We are currently investing an issue where a subset of customers are seeing offline O365 channels. ### 2026-05-28 18:57 UTC: identified We are attempting a mitigation step to get impacted channels back online. ### 2026-05-28 19:35 UTC: identified Front continues to investigate paths to restore access for affected Office365 channels. Office reports internal errors, which we are trying to work around. ### 2026-05-28 23:36 UTC: identified Front is partnering with Microsoft to investigate the channel sync failures and will continue to update here as we make progress. Manually re-authorizing the channel in Front's channel settings has worked in some cases, but not all. Please contact support@front.com for assistance. ### 2026-05-29 02:05 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 8 hours. Manually re-authorizing the channel in Front's channel settings has worked in some cases, but not all. Please contact support@front.com for assistance. ### 2026-05-29 10:42 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 6 hours. Manually re-authorizing the channel in Front's channel settings has worked in some cases, but not all. Please contact support@front.com for assistance. ### 2026-05-29 18:38 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 6 hours. Manually re-authorizing the channel in Front's channel settings has worked in some cases, but not all. Please contact support@front.com for assistance. ### 2026-05-29 23:40 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 6 hours. Manually re-authorizing the channel in Front's channel settings has worked in some cases, but not all. Please contact support@front.com for assistance. ### 2026-05-30 03:37 UTC: identified Front is continuing to partner with Microsoft to investigate the decreasing volume of channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in most cases, but not all. Please contact support@front.com for assistance. ### 2026-05-30 16:04 UTC: identified Front is continuing to partner with Microsoft to investigate the decreasing volume of channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in most cases, but not all. Please contact support@front.com for assistance. ### 2026-05-31 03:17 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in most cases, but not all. Please contact support@front.com for assistance. ### 2026-05-31 15:22 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in most cases, but not all. Please contact support@front.com for assistance. ### 2026-06-01 02:57 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in majority of cases, but not all. Please contact support@front.com for assistance. ### 2026-06-01 15:30 UTC: identified Front is continuing to partner with Microsoft to investigate the channel sync failures. The next update will be within the next 12 hours. Manually re-authorizing the channel in Front's channel settings has worked in majority of cases, but not all. Please contact support@front.com for assistance. ### 2026-06-01 23:35 UTC: resolved Front is continuing to partner with Microsoft on root cause of remaining channel sync failures. We added the ability to automatically bring these channels back online to prevent further customer impact. --- down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by Sazabi (https://sazabi.com/?utm_source=down-guide&utm_medium=markdown).