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There is an identified issue reported by Microsoft that is affecting the following Mail Assure and SpamExperts services.
* Mail flow going through Microsoft may be affected. Undeliverable mail is spooled and can be read and replied to in Mail Assure and SpamExperts.
* M365 Sync (Mail Assure only)
* Login with Microsoft 365 SSO may fail.
Core mail flow to and from non-Microsoft hosted recipient is not affected.
Please check [Microsoft Service Health Status](https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect) and this uptime post for updates.
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