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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:550Classifiedas 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