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SMTP connection from lost

Discussion in 'E-mail Discussions' started by keat63, Oct 20, 2017.

  1. keat63

    keat63 Well-Known Member

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    could someone help me decipher this please.
    Looking at part 2 of the log file, I guess someone was trying to connect to the server using info, as thier login credentials, which doesn't exists so hence the failure.

    But i'm struggling to understand this first part.
    Code:
    2017-10-19 22:01:52 SMTP connection from [xxx.xxx.xxx.xxx]:5143 (TCP/IP connection count = 1)
    2017-10-19 22:01:52 SMTP connection from xxx-xxx-xxx-xxx.static.asianet.co.th [xxx.xxx.xxx.xxx]:5143 lost
    2017-10-19 22:01:53 SMTP connection from [xxx.xxx.xxx.xxx]:5262 (TCP/IP connection count = 1)
    2017-10-19 22:02:48 H=xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:5262 sender verify fail for <test@co.uk>: The mail server could not deliver mail to test@co.uk.  The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.
    2017-10-19 22:02:48 H=xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:5262 F=<test@co.uk> rejected RCPT <test@gmail.com>: Sender verify failed
    2017-10-19 22:03:02 SMTP connection from [xxx.xxx.xxx.xxx]:15734 (TCP/IP connection count = 3)
    
    
    
    
    
    2017-10-19 22:03:25 dovecot_login authenticator failed for xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:15734: 535 Incorrect authentication data (set_id=info)
    2017-10-19 22:05:33 SMTP command timeout on connection from xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:5262
    2017-10-19 22:06:10 SMTP command timeout on connection from xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:15734
    2017-10-19 22:06:10 H=xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:15734 Warning: "Connection Ratelimit - xxx-xxx-xxx-xxx.static.asianet.co.th (pta-ad.domain) [xxx.xxx.xxx.xxx]:15734 because of notquit: command-timeout (2.0/1h max:1.2)"
    
     
    #1 keat63, Oct 20, 2017
    Last edited by a moderator: Oct 20, 2017
  2. rpvw

    rpvw Well-Known Member

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  3. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Let us know if the thread linked in the previous post helps.

    Thank you.
     
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