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Outgoing M365 Emails Degraded

Monitoring

Our engineers have addressed the underlying cause and deployed a fix for outgoing email sent via M365 SMTP.

Action is required for accounts using M365 SMTP to re-enable outgoing email. Your SMTP configuration needs to be removed and recreated. Upon successful re-creation of SMTP settings in Syncro, emails will flow normally.

Steps to re-enable SMTP can be found here: https://docs.syncromsp.com/emails-mailboxes/smtp

Please note that emails sent after approximately 7 pm EST on 12/17/2025 may need to be manually sent again. We apologize for the disruption this causes. We will continue to monitor to ensure platform stability.

Investigating

We are actively investigating a reported issue when attempting to send outgoing emails with Microsoft 365 using the SMTP feature. Our team is treating this with high priority and is actively working to identify the root cause and restore SMTP functionality with Microsoft 365.

We appreciate your patience while we work on this resolution.