Coppell ISD

Title: Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online User impact: Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. More info: As a temporary alternative, impacted users may reply or reply all to email messages through user inboxes. Current status: We're continuing to monitor the deployment of our fix as it progresses, and we'll aim to provide a timeline of completion by our next scheduled communications. Scope of impact: This issue impacts any user attempting to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. This information may be updated as our investigation continues. Next update by: Thursday, October 8, 2026, at 1:00 AM UTC