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제목 : [NDR] Delivery Failure Notice :
첨부화일 내용 : delivery-status.txt (0.31K)
Your message can't be delivered to the following recipients:
Report-MTA: DNS; ruby2.snu.ac.kr
Remote-MTA:
Recipient: RFC822; ****@****
Action: failed
Status: 5.2.1
Diagnostic-code: 550 Classified as SPAM, so returned
This report relates to a message you sent with the following header fileds:
메일 내용
Your message cannot be delivered to the following recipients:
Recipient :****@****
Reason:550 Classified as SPAM, so returned