POP3/IMAP problem with 2010 mailboxes
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Hi,
Thanks for the info. Here are my replies to your suggestions.
"Please try to use Outlook Express to test the issue first. We need to verify if it is a Thunderbird client related issue."
This is not a client related issue. I tried to connect to the POP3 server using Telnet with the same error "-ERR Server Unavailable. 21"
"Please try to remove TSL from Internalconnectionsettings and then check the issue again."
How do I do that? The POP and IMAP are already setup without TLS in EMC:
With the set-popsettings cmdlet, the Microsoft Exchange 2010 SP1 says that it's either TLS or SSL for the InternalConnectionSettings parameter:
http://technet.microsoft.com/en-us/library/aa998252.aspx
"Enter a value using the format: <HostName>:<Port>: <Encryption Type>. The <Encryption Type> part of the multivalued value is optional. Valid values for <Encryption Type> are either TLS or SSL."
Or is there something I don't understand?
"Please enable protocol logging for POP3 and IMAP4 on Exchange Server. Try to post the log here."
It's in my original post... Here is it again:
POP3 log excerpt for a non-working user (mtest02) (raised to expert mode):
- OpenSession
- capa
- auth Plain R="-ERR Logon failure: unknown user name or bad password.";RpcL=-1;LdapL=-1;Msg="User:mtest _. 02:a05d8345-2b88-4b92-a2ca-65d1005b362f:General01:2010mbserver.domain.xxxxxxxx";Excpt="Could not load file or assembly 'Microsoft.Exchange.Compliance, Version=14.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.-FileNotFoundException"
- user mtest02 R=ok;RpcL=-1;LdapL=-1
- pass ********* R="-ERR Server Unavailable. 21";RpcL=-1;LdapL=-1;Msg="User:mtest _. 02:a05d8345-2b88-4b92-a2ca-65d1005b362f:General01:SLEXMB01.bureautique.uqar.qc.ca";Excpt="Could not load file or assembly 'Microsoft.Exchange.Compliance, Version=14.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.-FileNotFoundException"
- CloseSession
- IMAP log excerpt for a non-working user (mtest02) (raised to expert mode):
- OpenSession
- capability R=ok;RpcL=-1;LdapL=-1
- authenticate plain R="2 NO AUTHENTICATE failed.";RpcL=-1;LdapL=-1;Msg=AuthFailed:LogonDenied
- login mtest02 ****** R="4 NO LOGIN failed.";RpcL=-1;LdapL=-1;Msg=LogonFailed:LoginDenied
- CloseSession
or do you mean another type of log?
"Besides, I recommend you to apply the latest update for your Exchange Server."
Exchange 2010 SP1 UR4. Sorry I didn't mention this in my original post.
"Also you can check event log on Exchange Servers."
No issues, warning or errors related to POP3 in the CA server application log. In the security log, I found 3 logon/logff information events related to the same accounts used for the previous examples in my original post. It seems to indicate that the logon attempt was a success. Something wrong seems to be happening after the user logs on to the POP server.
Included here are the 3 events:
EVENT ID 4648:
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 2011-08-30 10:06:51
Event ID: 4648
Task Category: Logon
Level: Information
Keywords: Audit Success
User: N/A
Computer: CASERVER.domain.abc
Description:
A logon was attempted using explicit credentials.Subject:
Security ID: NETWORK SERVICE
Account Name: CASERVER$
Account Domain: DOMAIN
Logon ID: 0x3e4
Logon GUID: {00000000-0000-0000-0000-000000000000}Account Whose Credentials Were Used:
Account Name: mtest02
Account Domain: DOMAIN
Logon GUID: {00000000-0000-0000-0000-000000000000}Target Server:
Target Server Name: localhost
Additional Information: localhostProcess Information:
Process ID: 0x1508
Process Name: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\PopImap\Microsoft.Exchange.Pop3.exeNetwork Information:
Network Address: -
Port: -EVENT ID #4624
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 2011-08-30 10:06:51
Event ID: 4624
Task Category: Logon
Level: Information
Keywords: Audit Success
User: N/A
Computer: SLEXCA01.bureautique.uqar.qc.ca
Description:
An account was successfully logged on.Subject:
Security ID: NETWORK SERVICE
Account Name: SLEXCA01$
Account Domain: BUREAUTIQUE
Logon ID: 0x3e4Logon Type: 8
New Logon:
Security ID: BUREAUTIQUE\mtest02
Account Name: mtest02
Account Domain: BUREAUTIQUE
Logon ID: 0x1a50bafb
Logon GUID: {00000000-0000-0000-0000-000000000000}Process Information:
Process ID: 0x1508
Process Name: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\PopImap\Microsoft.Exchange.Pop3.exeNetwork Information:
Workstation Name: SLEXCA01
Source Network Address: -
Source Port: -Detailed Authentication Information:
Logon Process: Advapi
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Transited Services: -
Package Name (NTLM only): -
Key Length: 0EVENT ID #4634
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 2011-08-30 10:06:51
Event ID: 4634
Task Category: Logoff
Level: Information
Keywords: Audit Success
User: N/A
Computer: SLEXCA01.bureautique.uqar.qc.ca
Description:
An account was logged off.Subject:
Security ID: BUREAUTIQUE\mtest02
Account Name: mtest02
Account Domain: BUREAUTIQUE
Logon ID: 0x1a50bafbLogon Type: 8
Michel Dubé IT analyst (servers) - UQAR
