Hi @Kalyan Sundar ,
The reason could be a restriction in delivery management. If the sender is not allowed to send messages to the DL or sender is located outside of your organization.
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Recipients didn't get the meeting invite when sent to a DL collapsed. The same invite gets delivered to all when the DL is expanded. This happens with outlook o365
Hi @Kalyan Sundar ,
The reason could be a restriction in delivery management. If the sender is not allowed to send messages to the DL or sender is located outside of your organization.