Event ID - 12052

Event Id12052
SourcePOP3 Connector
DescriptionPOP3:An error occurred during a POP3 transaction to host Hostname[IP_address]. For user Username. The error is 58.
Event InformationWhen the Post Office Protocol 3 (POP3) Connector attempts to download email from an MSN(TM) Internet Access POP3 account it is not able to do so successfully, and it logs the above events in the Application log in Event Viewer along with Event ID 12050.
CAUSE :
This event is logged because MSN POP3 servers require Secure Password Authentication (SPA) and SPA is not supported by the Small Business Server POP3 Connector.

These event errors occur on any POP3 servers which require SPA. 
RESOLUTION :
To resolve this issue, you need to use a POP3 Client software that supports SPA such as Microsoft Outlook 2000 (Microsoft Outlook Internet E-Mail Service is required for Microsoft Outlook 2000) or Microsoft Outlook Express. </p>
Reference LinksSBS POP3 Connector Is Unable to Download E-Mail from MSN POP3 Accounts

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