메일을 보냈는데요
하나는 아래와 같은 메세지로 돌아오고
Error Message : 550 5.1.1 No such user <****@****>



또하나는..
The original message was received at Mon, 21 Jul 2003 11:22:55 +0900
from [218.38.12.53]

----- The following addresses had permanent fatal errors -----
<****@****>
(reason: 552 5.2.2 zzrr11r: mbox is over quota)

----- Transcript of session follows -----
... while talking to wwl101.daum.net:
>>> DATA
<<< 552 5.2.2 zzrr11r: mbox is over quota
554 5.0.0 Service unavailable (zzrr11r: mbox is over quota)


왜 이런 걸까여?