The original message was received at Thu, 25 Apr 2002 22:21:59 +0900
from localhost
with id g3PDLxC26761
    ----- The following addresses had permanent fatal errors -----
<collectd_518 at netian.com>
    (reason: 550 RCPT TO:<collectd_518 at netian.com> User unknown)
    ----- Transcript of session follows -----
... while talking to mx0.netian.com.:
>>> RCPT To:<collectd_518 at netian.com>
<<< 550 RCPT TO:<collectd_518 at netian.com> User unknown
550 5.1.1 <collectd_518 at netian.com>... User unknown
 전번에 해킹을 한번 당한적이 있었습니다만... 외국쪽인듯..
그 이후로 여기저기서 스펨메일도 많이오고 참 찝찝합니다... ㅜㅜ
그래서 TCP wrappers랑 iptable도 설정하고 이것저것 신경을 썼습니다만..
위와같은 메일이 루트로부터 조금씩 오다가..
오늘아침에는 600통 가까이 와있군요....
전부 같은 내용인데 다른부분이라면 메일 ID가
collectd_XXX at netian.com 에서 XXX부분의 숫자만 바뀝니다.
이게 대체 무슨일이 벌어지는건지좀 조언 부탁드립니다.
 P.S 그리고 첨부된게 있었네요... 이런게..
 The original message was received at Fri, 26 Apr 2002 10:22:18 +0900
from acc1-ppp5.mar.dialup.connect.net.au [210.10.240.5]
    ----- The following addresses had permanent fatal errors -----
<ldog999 at att.net>
    (reason: 550 Invalid recipient: <ldog999 at att.net>)
<ldogdpla at att.net>
    (reason: 550 Invalid recipient: <ldogdpla at att.net>)
<ldog9969 at att.net>
    (reason: 550 Invalid recipient: <ldog9969 at att.net>)
<ldog98 at att.net>
    (reason: 550 Invalid recipient: <ldog98 at att.net>)
<ldog93 at att.net>
    (reason: 550 Invalid recipient: <ldog93 at att.net>)
<ldog928 at att.net>
    (reason: 550 Invalid recipient: <ldog928 at att.net>)
<ldogent at att.net>
    (reason: 550 Invalid recipient: <ldogent at att.net>)
<ldog911 at hotmail.com>
    (reason: 550 Requested action not taken:user account inactive)
<ldoganlar at att.net>
    (reason: 550 Invalid recipient: <ldoganlar at att.net>)
<ldoga at att.net>
    (reason: 550 Invalid recipient: <ldoga at att.net>)
<ldogan7604 at att.net>
    (reason: 550 Invalid recipient: <ldogan7604 at att.net>)
<ldogboogie at att.net>
    (reason: 550 Invalid recipient: <ldogboogie at att.net>)
<ldog91 at att.net>
    (reason: 550 Invalid recipient: <ldog91 at att.net>)
<ldogdachil at att.net>
    (reason: 550 Invalid recipient: <ldogdachil at att.net>)
<ldog95 at att.net>
    (reason: 550 Invalid recipient: <ldog95 at att.net>)
<ldogas at att.net>
    (reason: 550 Invalid recipient: <ldogas at att.net>)
<ldogfrmca at att.net>
    (reason: 550 Invalid recipient: <ldogfrmca at att.net>)
<ldogan at att.net>
    (reason: 550 Invalid recipient: <ldogan at att.net>)
<ldog99 at att.net>
    (reason: 550 Invalid recipient: <ldog99 at att.net>)
    ----- Transcript of session follows -----
... while talking to gateway5.att.net.:
<<< 421 mtiwgwc29.worldnet.att.net connection refused from
[218.52.33.180]
... while talking to gateway1.att.net.:
>>> RCPT To:<ldog99 at att.net>
<<< 550 Invalid recipient: <ldog99 at att.net>
550 5.1.1 <ldog99 at att.net>... User unknown
>>> RCPT To:<ldogan at att.net>
<<< 550 Invalid recipient: <ldogan at att.net>
550 5.1.1 <ldogan at att.net>... User unknown
>>> RCPT To:<ldogfrmca at att.net>
<<< 550 Invalid recipient: <ldogfrmca at att.net>
550 5.1.1 <ldogfrmca at att.net>... User unknown
>>> RCPT To:<ldogas at att.net>
<<< 550 Invalid recipient: <ldogas at att.net>
550 5.1.1 <ldogas at att.net>... User unknown
>>> RCPT To:<ldog95 at att.net>
<<< 550 Invalid recipient: <ldog95 at att.net>
550 5.1.1 <ldog95 at att.net>... User unknown
>>> RCPT To:<ldogdachil at att.net>
<<< 550 Invalid recipient: <ldogdachil at att.net>
550 5.1.1 <ldogdachil at att.net>... User unknown
>>> RCPT To:<ldog91 at att.net>
<<< 550 Invalid recipient: <ldog91 at att.net>
550 5.1.1 <ldog91 at att.net>... User unknown
>>> RCPT To:<ldogboogie at att.net>
<<< 550 Invalid recipient: <ldogboogie at att.net>
550 5.1.1 <ldogboogie at att.net>... User unknown
>>> RCPT To:<ldogan7604 at att.net>
<<< 550 Invalid recipient: <ldogan7604 at att.net>
550 5.1.1 <ldogan7604 at att.net>... User unknown
>>> RCPT To:<ldoga at att.net>
<<< 550 Invalid recipient: <ldoga at att.net>
550 5.1.1 <ldoga at att.net>... User unknown
>>> RCPT To:<ldoganlar at att.net>
<<< 550 Invalid recipient: <ldoganlar at att.net>
550 5.1.1 <ldoganlar at att.net>... User unknown
>>> RCPT To:<ldogent at att.net>
<<< 550 Invalid recipient: <ldogent at att.net>
550 5.1.1 <ldogent at att.net>... User unknown
>>> RCPT To:<ldog928 at att.net>
<<< 550 Invalid recipient: <ldog928 at att.net>
550 5.1.1 <ldog928 at att.net>... User unknown
>>> RCPT To:<ldog93 at att.net>
<<< 550 Invalid recipient: <ldog93 at att.net>
550 5.1.1 <ldog93 at att.net>... User unknown
>>> RCPT To:<ldog98 at att.net>
<<< 550 Invalid recipient: <ldog98 at att.net>
550 5.1.1 <ldog98 at att.net>... User unknown
>>> RCPT To:<ldog9969 at att.net>
<<< 550 Invalid recipient: <ldog9969 at att.net>
550 5.1.1 <ldog9969 at att.net>... User unknown
>>> RCPT To:<ldogdpla at att.net>
<<< 550 Invalid recipient: <ldogdpla at att.net>
550 5.1.1 <ldogdpla at att.net>... User unknown
>>> RCPT To:<ldog999 at att.net>
<<< 550 Invalid recipient: <ldog999 at att.net>
550 5.1.1 <ldog999 at att.net>... User unknown
... while talking to mx10.hotmail.com.:
>>> RCPT To:<ldog911 at hotmail.com>
<<< 550 Requested action not taken:user account inactive
550 5.1.1 <ldog911 at hotmail.com>... User unknown