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Jerry Seinfield

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Client receives an undeliverable message when emailing attachments to an internal user

Hello Experts,

We have an issue for one particular user who is sending an email with attachment (MSG format file) to multiple internal users. This message is sent successfuly to all users except for one user which is getting an NDR(5.2.1)

I tracked the message and it was transferred successfuly to the destination exchange server

Please attached is the NDR and screenshot of message tracked

Can anyone point me on the right direction?

Thanks in advance
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Jerry Seinfield

8/22/2022 - Mon