Exchange 2019. Connection error imap.

Dmitry Dubok 1 Reputation point
2022-07-04T17:32:50.583+00:00

Exchange 2019 CU11. Not work connection on imap.

Domain: sub.domain.com, general domain Exchange domain.com

Connect by imap 143, have next logs from server:
2022-07-04T17:13:22.004Z,0000000000000003,1,172.22.193.39:143,172.22.193.41:49885,,2046,15,150,capability,,R=OK,
2022-07-04T17:13:22.004Z,0000000000000003,2,172.22.193.39:143,172.22.193.41:49885,,0,0,0,CloseSession,,,

Connect by imap 143 TLS, have next logs from server:
2022-07-04T17:16:22.235Z,0000000000000004,4,172.22.193.39:143,172.22.193.41:49887,,8,44,294,authenticate,NTLM,"R=""rqwb NO AUTHENTICATE failed."";Msg=""AuthFailed:LogonDenied,User: not found"";ErrMsg=AuthFailed:LogonDenied",
2022-07-04T17:16:22.268Z,0000000000000004,5,172.22.193.39:143,172.22.193.41:49887,username@keyman .com,31,35,23,login,username@keyman .com *****,"R=""xs0l NO LOGIN failed."";Msg=LogonFailed:LogonDenied;ErrMsg=LogonFailed:LogonDenied",
2022-07-04T17:16:22.294Z,0000000000000004,6,172.22.193.39:143,172.22.193.41:49887,username@keyman .com,26,53,93,id,"(""name"" ""Microsoft Outlook"" ""version"" ""16.0"")",R=OK,
2022-07-04T17:16:24.544Z,0000000000000004,7,172.22.193.39:143,172.22.193.41:49887,username@keyman .com,1,44,294,authenticate,NTLM,"R=""nrlz NO AUTHENTICATE failed."";Msg=""AuthFailed:LogonDenied,User: not found"";ErrMsg=AuthFailed:LogonDenied",
2022-07-04T17:16:24.545Z,0000000000000004,8,172.22.193.39:143,172.22.193.41:49887,username@keyman .com,1,53,93,id,"(""name"" ""Microsoft Outlook"" ""version"" ""16.0"")",R=OK,
2022-07-04T17:16:24.556Z,0000000000000004,9,172.22.193.39:143,172.22.193.41:49887,username@keyman .com,10,35,52,login,username@keyman .com *****,"R=""ozng NO LOGIN failed.\r\n* BYE Connection closed. 14"";Msg=LogonFailed:LogonDenied;ErrMsg=LogonFailed:LogonDenied",
2022-07-04T17:16:25.101Z,0000000000000005,0,172.22.193.39:143,172.22.193.41:49888,,1,0,53,OpenSession,,,
2022-07-04T17:16:25.108Z,0000000000000005,1,172.22.193.39:143,172.22.193.41:49888,,1,53,93,id,"(""name"" ""Microsoft Outlook"" ""version"" ""16.0"")",R=OK,
2022-07-04T17:16:25.109Z,0000000000000005,2,172.22.193.39:143,172.22.193.41:49888,,1,15,150,capability,,R=OK,
2022-07-04T17:16:25.113Z,0000000000000005,3,172.22.193.39:143,172.22.193.41:49888,,3,13,36,starttls,,,
2022-07-04T17:16:25.123Z,0000000000000005,4,172.22.193.39:143,172.22.193.41:49888,,1,15,160,capability,,R=OK,
2022-07-04T17:16:25.129Z,0000000000000005,5,172.22.193.39:143,172.22.193.41:49888,,1,44,294,authenticate,NTLM,"R=""cyol NO AUTHENTICATE failed."";Msg=""AuthFailed:LogonDenied,User: not found"";ErrMsg=AuthFailed:LogonDenied",
2022-07-04T17:16:25.139Z,0000000000000005,6,172.22.193.39:143,172.22.193.41:49888,username@keyman .com,8,35,23,login,username@keyman .com *****,"R=""k32k NO LOGIN failed."";Msg=LogonFailed:LogonDenied;ErrMsg=LogonFailed:LogonDenied",
2022-07-04T17:16:25.140Z,0000000000000005,7,172.22.193.39:143,172.22.193.41:49888,username@keyman .com,1,53,93,id,"(""name"" ""Microsoft Outlook"" ""version"" ""16.0"")",R=OK,
2022-07-04T17:16:25.449Z,0000000000000005,8,172.22.193.39:143,172.22.193.41:49888,username@keyman .com,1,44,294,authenticate,NTLM,"R=""p8vl NO AUTHENTICATE failed."";Msg=""AuthFailed:LogonDenied,User: not found"";ErrMsg=AuthFailed:LogonDenied",
2022-07-04T17:16:25.451Z,0000000000000005,9,172.22.193.39:143,172.22.193.41:49888,username@keyman .com,1,53,93,id,"(""name"" ""Microsoft Outlook"" ""version"" ""16.0"")",R=OK,

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Amit Singh 4,766 Reputation points
    2022-07-05T06:02:13.497+00:00

    It’s recommended to update the Exchange Server in a non-production environment for testing before deploying it to your production servers.

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