A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
If message through your Exchange on-premises, you will could use Get-MesageTrackingLog for it:
Get-TransportService | Get-MessageTrackingLog -Sender "******@domain.com" -Recipients "******@oninedomain.com" -Start 5/10/2022 -End 5/18/2022 | Sort-Object Timestamp
You will could know it stuck on which step.
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