only on euser is not getting emails from outside

I got report from proofpoint

any thing I need to check.

QID 1y7r09pg89-2 MTA data not available
This may have occurred because the message was blocked and therefore not processed by the MTA.  
SID 1y7r09pg89
Message ID  
Sender Hostname
Sender IP Address
Server Instance
GUID RKvoWMc8TYkiXjlyoBzAKR7dTvvBFblg
Module ID pdr, session,access,spf,mail
Policy Routes  
Quarantine Rule  
Final Rule norcpts
Duration 0.019
Quarantine Folder  
Spam Score 0
Virus Names  
Message Size (Bytes)
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Can you try entering the sender's email address/domain in the whitelist?  Is it Exchange 2010?

Also, you may want to edit recipient and sender email addresses for privacy purposes.

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pramod1Author Commented:
she is on o365
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