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SERVER REPLY: 550 5.7.1 tr@dmrl.ernet.in... Relaying denied
-"@dmrl.ernet.in" ÀÇ ¸ÞÀÏ ÁÖ¼Ò¸¦ ÀεµÀÇ ¸ÞÀÏ ¼­¹ö¿¡¼­ ÀÚ½ÅÀÇ ¼ö½Åµµ¸ÞÀÏÀ¸·Î ÀνÄÇÏÁö ¸øÇؼ­ »ý±ä °Í
- ¸ÞÀϼ­¹ö¿¡¼­ Relaying IP¸¦ ¿­¾îÁְųª »ç¿ëÀÚ´ÜÀ̶ó¸é SMTP AUTH¸¦ »ç¿ëÇÑ´Ù
 
SERVER REPLY: 550 Not Found the PTR record of your IP, Check your DNS
-PTR ·¹Äڵ带 °Ë»ç¸¦ Çؼ­ ÇØ´ç IP°¡ È£½ºÆ®¸¦ °Ë»öÇϸøÇÏ´Â °æ¿ì. ISP ¾÷ü¿¡ reverse DNSÀÇ µî·Ï¿äû
 
REMOTE SERVER RESPONSE : 421 4.3.2 Your IP(192.168.60.12) is filtered and this connection will be closed. 421 Your IP is filtered by IP Rate Control
-[½Ã°£´ç Á¢¼Ó Ƚ¼ö Á¦ÇÑ] ¿¡ ÀÇÇؼ­ Â÷´ÜµÈ ¸ÞÀÏÀÔ
 
554-hrndva-mxlb.mail.rr.com554 #5.5.4 Relaying denied. IP name lookup failed for xxx.xxx.xxx.xxxx
-ptr ·¹ÄÚµå Á¶È¸ mailÀåºñÀÇ ip¸¦ ¿ª¹æÇâ Á¶È¸ DNS¿¡ ptr·¹ÄÚµå µî·Ï
-ÇØ´ç DNS¸¦ ¿ªÄõ¸® Çϴµ¥ DNS¼­¹ö¿¡ resolving¿¡ ´ëÇÑ Á¤º¸°¡ ¾ø¾î¼­ ¹ß»ý, ÇØ´ç DNS¿Í ISP¿¡ µî·Ï¿äû
 
DNS ¹®Á¦·Î ÀÎÇÑ ¸ÞÀÏ ¼ö½Å ¸øÇÏ´Â ¹®Á¦
-DNS Query (ÇØ´ç µµ¸ÞÀο¡ ´ëÇÑ MX ·¹Äڵ尪 Ãß°¡)
 
mail log¿¡ FAKE_MSOE5´Â ·Î ÀâÇôÁø mail
-¾Æ¿ô·è ÀͽºÇÁ·¹½º¿¡¼­ º¸³½ ¸ÞÀÏÀÌ ¾Æ´Ñ ¸¸µé¾î¼­ º¸³½ ¸ÞÀÏÀ» Àâ´Â ·êÀÔ´Ï´Ù. 
 
Á¤»ó¸ÞÀÏÀÌ spamrobot¿¡ ÀÇÇؼ­ ½ºÆÔÀ¸·Î ó¸® µÇ¾î ¼ö½Å 
-¸ÞÀÏ¿¡ ´ëÇÑ bayesjudge°á°ú 
 
»ç¿ëÀÚÀÇ MDN.DB°¡ À߸øµÇ¾î º¸³½ ÆíÁöÇÔÀÌ ¿­¸®Áö°¡ ¾ÊÀ½
-µð½ºÅ© fault°¡ ¹ß»ýÇÒ ¶§ Àӽ÷Πº¹±¸µÈ »ç¿ëÀÚÀÇ MDN.DB°¡ Á¤»óÀûÀ¸·Î º¹±¸°¡ ¾ÈµÇ¾î ÀÖ´Ù moveÇØ ÁÜÀ¸·Î½á º¸³½ ÆíÁöÇÔÀÌ º¸ÀÓ
 
REMOTE SERVER RESPONSE : 450 4.7.1 Client host rejected: cannot find your reverse hostname
Deferred: 450 4.7.1 Access denied. IP name lookup failed
- IP¸¦ DNS Reverse Query // ISP ¾÷üÀÇ DNS¿¡ µî·Ï (¸®¹ö½º DNS)
 
SERVER REPLY: 554- (RTR:SC) http://postmaster.info.aol.com/errors/554rtrsc.html--- Forwarding ¸Þ½ÃÁö
-ÇØ´ç ¸Þ¼¼Áö´Â AOL ÀÇ ºí·Ï Á¤Ã¥¿¡ ÀÇÇØ ¸·Èù °Í
 
DELIVERY FAILURE: 550 5.3.0 Mail have traversed Too many hops. Reject it.
-°ü·Ã ¸Þ¼¼Áö°¡ ³ª¿ÔÀ»°æ¿ì´Â ¸ÞÀÏÀÇ °æ·Î°¡ ÁöÁ¤µÈ Ƚ¼öÀÌ»ó ³Ñ¾úÀ»¶§ ¹ß»ýÇÏ´Â Çö»óÀÔ´Ï´Ù.
 
Reason:421-: (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html421 SERVICE NOT AVAILABLE 
-¼ö½ÅÃø ¸ÞÀϼ­¹ö¿¡¼­ ¹ß¼Û¼­¹öÀÇ IP¸¦ Reverse QueryÀ» ÇÏ¿´´Âµ¥ ÀÀ´äÀÌ ¾ø´Â°æ¿ìÀÇ ¸Þ¼¼Áö (ÇØ´ç ISP¾÷ü¿¡°Ô µî·Ï ¿äû)
 
Reason:421 CCRT 203.233.202.90: Connection refused. Server is busy(RT) 
-ÇØ´ç ¸ÞÀÏÀº ¼ö½ÅÃø¿¡¼­ Server Busy »óÅ·ΠÀÎÇØ, ÀϽÃÀûÀ¸·Î °ÅºÎ
 
REMOTE SERVER RESPONSE : 451 4.4.2 Bad connection (io timeout) 
-ÇØ´ç¼­¹ö¿¡¼­ ÀÀ´äÀÌ ¾ø´Â°æ¿ì
 
Reason :451 Too many retry 
-¸ÞÀϼ­¹ö¿¡¼­ ¸ÞÀÏÀ» °ÅºÎÇϸ鼭 4¹ø´ë ¿¡·¯ Äڵ带 ³Ñ°ÜÁÖ°í, retryÇÏ´Ù°¡ ÃÖÁ¾ÀûÀ¸·Î ¹ß¼Û ½ÇÆÐÇÏ¿©, NDR¸Þ¼¼Áö »ý¼º
 
Reason :451 Too many retry (watcher-µÞ´Ü ¸ÞÀϼ­¹ö)
-watcher¿¡¼­ µÞ´Ü ¸ÞÀϼ­¹ö·Î 25¹ø Æ÷Æ®·Î ºÙ¾î Å×½ºÆ®
 
Reason :451 Bad connection (io timeout) 
- »ó´ëÆí ¼­¹ö¿¡¼­ ÀÀ´äÀ» Á¤»óÀûÀ¸·Î ÁÖÁö ¸øÇÏ¿© ¸ÞÀϼ­¹ö(ȤÀº ½ºÆÔ¼­¹ö)¿¡¼­ ¸ÞÀÏÀ» Àü´ÞÇÏÁö ¸øÇÒ°æ¿ì¿¡ ³ªÅ¸³ª´Â ÀÓ½ÃÀûÀÎ ¸Þ¼¼Áö, Ãß ÈÄ ½ÃµµÇغ¸¸é Á¤»ó ¹ß¼ÛµÇ¾îÁú¼ö ÀÖ´Ù
-Àӽà Á¶Ãë ¹æ¹ýÀ¸·Î´Â SMTP connection timeoutÀ» ±æ°Ô ÁÖ´Â ¹æ¹ýµµ ÀÖÁö¸¸, ÃßõÇÏ´Â ¹æ¹ýÀº ¾Æ´Ï´Ù.

 
Router: Failed to connect to SMTP host xxx.com because : The remote server is not a known TCP/IP host
-ÇØ´ç Àåºñ¿¡ ´ëÇؼ­ telnet xxx.com 25 ÀÇ ÀÀ´äÀ» ±â´Ù·ÁºÁ¾ß ÇÒ »óȲ
 
Reason:421 CCRT 203.233.202.90: Connection refused. Server is busy(RT) 
-Server Busy »óÅ·ΠÀÎÇØ, ÀϽÃÀûÀ¸·Î °ÅºÎÇÑ°ÍÀÔ´Ï´Ù
 
Reason :550 Access .......ÇØ´çÇÏ´Â http ÁÖ¼Ò
-ÇØ´çÇÏ´Â http ÁÖ¼Ò·Î À̵¿ÇÏ¿©, IP¿¡ ´ëÇؼ­ ÇØÁ¦¿äû
 
SERVER REPLY: 530 Invalid SPF policy. See http://spf.pobox.com/why.html?sender...........
-DNS¿¡ spf recode °¡ µî·ÏµÇ¾îÁöÁö ¾Ê¾Æ¼­ ¹ß»ýÇÏ´Â ¹®Á¦ DNS¼­¹ö¿¡ spf¼³Á¤À»ÇؾßÇÑ´Ù
 
Diagnostic-Code: smtp; 554 5.7.0 Reject, id=96189-10 - SPAM 
-»ó´ë¹æ¿¡¼­ spamÀ¸·Î µî·ÏµÇ¾î °ÅºÎµÇ´Â Çö»ó »ó´ëÂÊ ¿î¿µÀÚ¿¡°Ô È®ÀÎÀ» ¿äûÇؾßÇÏ´Â ºÎºÐ
 
451 4.3.0 Other or undefined mail system status
-Watcher¿Í ¼ö½ÅÃø¿¡¼­ Á¤ÀÇÇÏÁö ¾ÊÀº ¸ÞÀÏ ¼­¹öÀÇ »óÅ¿¡ ´ëÇÑ ¸®ÅÏ ÄÚµå ¸íÈ®ÇÑ ¿øÀÎÀ» ¾Ë±â°¡ ¾î·Á¿ò  (ÇØ´ç °ü¸®ÀÚ¿¡°Ô ¹®ÀÇ)
 
Deferred: 450 4.7.1 Access denied. IP name lookup failed [203.251.183.73]
-ÇØ´ç »çÀÌÆ®´Â ptr·¹Äڵ带 ÂüÁ¶ÇÏ´Â ¹æ½ÄÀÔ´Ï´Ù. DNS¿¡ ptr ·¹Äڵ带 µî·ÏÇØÁà¾ß ÇÕ´Ï´Ù (»óÀ§ ISP¾÷ü)
 
WARN Charset unrecog (koi8-r) (spamprint/tr_spamprint_find_head.c:1616) 
-charset°ªÀÌ ÀνÄÇÒ¼ö ¾ø´Â À߸øµÈ °ªÀ¸·Î µé¾î¿Ã¶§ ³ªÅ¸³ª´Â Çö»ó ¼ö½Å/¹ß½Å¿¡´Â ÀÌ»óÀÌ ¾ø´Ù
 
552 5.2.3 Message length exceeds administrative limit 
-¸Þ¼¼ÁöÀÇ Å©±â°¡ ¼­¹öÀÇ Çã¿ëÄ¡º¸´Ù Ŭ°æ¿ì¿Í, ÃÖ´ë ÇÑ ¶óÀÎÀÇ ±æÀ̺¸´Ù ±æ¾îÁú °æ¿ì¹ß»ýµÇ´Â Çö»ó
 
-¿î¿µÁßÀÎ ¸ÞÀϼ­¹ö¿¡¼­ SPF ·¹Äڵ尡 ¾ø¾î¼­ ¹ß»ýÇÏ´Â Çö»óÀ¸·Î ÇØ´ç°æ¿ì DNS¿¡ spf·¹Äڵ带 µî·ÏÇÏ¿©¾ß ÇÑ´Ù
SERVER REPLY: 530 Invalid SPF policy. Seehttp://spf.pobox.com/why.html?
 
550_Access_from_ip_address_203.233.202.90_blocked._Visit..................
-¼ö½ÅÃø¿¡ ÀÖ´Â Blocked IP¿¡ ÀÇÇؼ­ ¸·ÇôÁø ¸ÞÀÏ - ÇØ´ç ´ã´çÀÚ¿¡°Ô ¿äûÇؾßÇÏ´Â ºÎºÐ
 
451 not allowed ip 
-Â÷´ÜµÇ´Â ÀÌÀ¯´Â »ó´ë¹æÃø¿¡ ¹®ÀǸ¦ ÇغÁ¾ßÁö ¾Ë¼ö ÀÖ´Â »óȲ
 
550 5.7.1 You(ip:xxx.xxx.xxx.xxx) are NOT allowed to RELAY (receiver:b@a.c).
-¼­¹ö¿¡¼­ ¸±·¹À̸¦ Çã¿ëÇÏÁö ¾ÊÀº°æ¿ì
- ¸ÞÀϼ­¹ö¿¡¼­ Relaying IP¸¦ ¿­¾îÁְųª »ç¿ëÀÚ´ÜÀ̶ó¸é SMTP AUTH¸¦ »ç¿ëÇÑ´Ù
 
553 Blocked using spam pattern, your message may contain the spam contents
-¼ö½ÅÃø¿¡¼­ ÇØ´ç·êÀ» »èÁ¦ÇØ¾ß °¡´ÉÇÕ´Ï´Ù
 
441 4.4.1 No answer from host 
-¸ÞÀϼ­¹ö (ȤÀº watcher)¿¡¼­ º¸³»´ÂÂÊ ¼­¹ö·Î 25¹øÀ» Á¢±ÙÇÏ¿´À»¶§ ÀÀ´äÀÌ ¾øÀ»°æ¿ì