Failed POP3 authentication attempt?

jtain

這一週來經常有USER出現這個錯誤，以至於不能收發信
Failed POP3 authentication attempt from 192.168.xx.xx for "xxx"
--> -ERR access denied
POP3 session terminated, (Bytes in/out: 47/184)

MarchFun

你有開啟 POP before SMTP ?

jtain

有
印象中上面的錯誤是 pop3時，
如果是stmp我知道那是USER沒有先執行pop3/imap

我今天又碰到類似的錯誤，這是完整的log
Wed 2018-05-09 14:56:37.304: Session 180994; child 0001
Wed 2018-05-09 14:56:37.304: Accepting POP3 connection from 27.241.205.xx:2805 to 192.168.x.x:110
Wed 2018-05-09 14:56:37.304: --> +OK xxxxxx.com.tw POP3 MDaemon 15.0.3 ready <[email protected]>
Wed 2018-05-09 14:56:37.483: <-- CAPA
Wed 2018-05-09 14:56:37.483: --> +OK Capability list follows
Wed 2018-05-09 14:56:37.483: --> TOP
Wed 2018-05-09 14:56:37.483: --> USER
Wed 2018-05-09 14:56:37.483: --> UIDL
Wed 2018-05-09 14:56:37.483: --> .
Wed 2018-05-09 14:56:37.843: <-- APOP [email protected] 7f6493c7023e52ec8fbe0ba221f5996b
Wed 2018-05-09 14:56:37.846: Failed POP3 authentication attempt from 27.241.205.xx for "[email protected]"
Wed 2018-05-09 14:56:37.848: --> -ERR access denied
Wed 2018-05-09 14:56:38.023: <-- USER [email protected]
Wed 2018-05-09 14:56:38.023: --> +OK [email protected]... User ok
Wed 2018-05-09 14:56:38.204: <-- PASS ******
Wed 2018-05-09 14:56:38.205: Failed POP3 authentication attempt from 27.241.205.xx for "[email protected]"
Wed 2018-05-09 14:56:38.207: --> -ERR access denied
Wed 2018-05-09 14:56:38.208: POP3 session terminated, (Bytes in/out: 105/226)

jtain

MarchFun 發表於 2018-4-29 03:32 PM
你有開啟 POP before SMTP ?

緊急求救！！！
今天早上所有的USER都無法連結 pop3 了
內網、外網、webmail 、SMTP及 imap 都失敗

Thu 2018-06-14 09:02:18.578: 01: ----------
Thu 2018-06-14 09:03:09.859: 01: Session 437622; child 0001
Thu 2018-06-14 09:03:09.859: 05: Accepting POP3 connection from 192.168.xx.xx:1048 to 192.168.xx.yy:110
Thu 2018-06-14 09:03:09.859: 03: --> +OK aaaa.com.tw POP3 MDaemon 15.0.3 ready <[email protected]>
Thu 2018-06-14 09:03:09.860: 02: <-- USER [email protected]
Thu 2018-06-14 09:03:09.860: 03: --> +OK [email protected]... User ok
Thu 2018-06-14 09:03:09.866: 02: <-- PASS ******
Thu 2018-06-14 09:03:09.869: 04: Failed POP3 authentication attempt from 192.168.xx.xx for "[email protected]"
Thu 2018-06-14 09:03:09.869: 03: --> -ERR access denied
Thu 2018-06-14 09:03:09.869: 04: POP3 session terminated, (Bytes in/out: 37/155)


Thu 2018-06-14 09:01:06.567: 01: ----------
Thu 2018-06-14 09:01:38.568: 05: Session 437616; child 0001
Thu 2018-06-14 09:01:38.568: 05: Accepting SMTP connection from 181.214.206.101:29066 to 192.168.xx.xx:25
Thu 2018-06-14 09:01:38.569: 03: --> 220 xxx.com.tw ESMTP MDaemon 15.0.3; Thu, 14 Jun 2018 09:01:38 +0800
Thu 2018-06-14 09:01:38.886: 02: <-- EHLO User
Thu 2018-06-14 09:01:38.886: 03: --> 250-xxx.com.tw Hello User, pleased to meet you
Thu 2018-06-14 09:01:38.886: 03: --> 250-ETRN
Thu 2018-06-14 09:01:38.886: 03: --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Thu 2018-06-14 09:01:38.886: 03: --> 250-8BITMIME
Thu 2018-06-14 09:01:38.886: 03: --> 250-ENHANCEDSTATUSCODES
Thu 2018-06-14 09:01:38.886: 03: --> 250 SIZE
Thu 2018-06-14 09:01:39.204: 02: <-- RSET
Thu 2018-06-14 09:01:39.204: 03: --> 250 2.0.0 RSET? Well, OK
Thu 2018-06-14 09:01:39.520: 02: <-- AUTH LOGIN
Thu 2018-06-14 09:01:39.520: 03: --> 334 VXNlcm5hbWU6
Thu 2018-06-14 09:01:39.837: 02: <-- YmVsbGFAY29tLnR3
Thu 2018-06-14 09:01:39.837: 03: --> 334 UGFzc3dvcmQ6
Thu 2018-06-14 09:01:40.154: 02: <-- ******
Thu 2018-06-14 09:01:40.159: 04: Failed SMTP authentication attempt from 181.214.206.101 for "[email protected]"
Thu 2018-06-14 09:01:40.159: 03: --> 535 5.7.8 Authentication failed
Thu 2018-06-14 09:01:40.476: 02: <-- QUIT
Thu 2018-06-14 09:01:40.476: 03: --> 221 2.0.0 See ya in cyberspace
Thu 2018-06-14 09:01:40.476: 04: SMTP session terminated (Bytes in/out: 71/343)

jtain

解決了，最後是因為 win 2008 r2 的 ODBC 有問題
改回使用預設值，幸好mdaemon 會自動把 .mdb 轉過去，
否則我還真不知道要如何處理