I am still getting the same error, yet can resolve by pinging the zimbra server domain name, private ip in the dmz and the public ip. From the command line from another linux server I can "dig" the domain name and get the correct answer. Here is the latest log:
14-09-2010 09:51:46 [3268]: ZCSPSTImportWizard-6.0.7_GA_2440 Version 6.0
14-09-2010 09:51:46 [3268]: ------------------Import Options--------------------------
14-09-2010 09:51:46 [3268]: Import Mails : Yes
14-09-2010 09:51:46 [3268]: Import Sent Items : Yes
14-09-2010 09:51:46 [3268]: Import Contacts : Yes
14-09-2010 09:51:46 [3268]: Import Calendar Items: Yes
14-09-2010 09:51:46 [3268]: Import Tasks : Yes
14-09-2010 09:51:46 [3268]: Import JunkMail : Yes
14-09-2010 09:51:46 [3268]: Import Deleted Items : Yes
14-09-2010 09:51:46 [3268]: UseProgressLogs : Yes
14-09-2010 09:51:46 [3268]: MessageLogging : Yes
14-09-2010 09:51:46 [3268]: ----------------------X-X-X-------------------------------
14-09-2010 09:51:46 [3268]: Creating / starting worker thread
14-09-2010 09:51:46 [3268]: Dispatching work to worker thread
14-09-2010 09:51:46 [748]: Worker thread started
14-09-2010 09:51:46 [748]: Work arrived...C:\Users\gdowrey\AppData\Local\Microsoft \Outlook\091310backup.pst
gordon.dowrey@builtesllc.com
14-09-2010 09:51:46 [748]: Using default store
14-09-2010 09:51:46 [748]: Logging on to zimbra server (mail.builtesllc.com:7071)
14-09-2010 09:51:53 [748]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\gdowrey\AppData\Local\Temp\ZCSPSTImportWi zard-6.0.7_GA_2440\5-RPCErrorRequest.xml
14-09-2010 09:51:53 [748]: Deleting mapi folder list
14-09-2010 09:51:53 [748]: RPC Error: The server name could not be resolved.
14-09-2010 09:51:53 [748]: Using default store
14-09-2010 09:51:53 [748]: Logging on to zimbra server (mail.builtesllc.com:7071)
14-09-2010 09:52:00 [748]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\gdowrey\AppData\Local\Temp\ZCSPSTImportWi zard-6.0.7_GA_2440\6-RPCErrorRequest.xml
14-09-2010 09:52:00 [748]: Deleting mapi folder list
14-09-2010 09:52:00 [748]: RPC Error: The server name could not be resolved.
14-09-2010 09:52:00 [748]: Using default store
14-09-2010 09:52:00 [748]: Logging on to zimbra server (mail.builtesllc.com:7071)
14-09-2010 09:52:07 [748]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\gdowrey\AppData\Local\Temp\ZCSPSTImportWi zard-6.0.7_GA_2440\7-RPCErrorRequest.xml
14-09-2010 09:52:07 [748]: Deleting mapi folder list
14-09-2010 09:52:07 [748]: RPC Error: The server name could not be resolved.
14-09-2010 09:52:07 [748]: Using default store
14-09-2010 09:52:07 [748]: Logging on to zimbra server (mail.builtesllc.com:7071)
14-09-2010 09:52:14 [748]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\gdowrey\AppData\Local\Temp\ZCSPSTImportWi zard-6.0.7_GA_2440\8-RPCErrorRequest.xml
14-09-2010 09:52:14 [748]: Deleting mapi folder list
14-09-2010 09:52:14 [748]: RPC Error: The server name could not be resolved.
14-09-2010 09:52:14 [748]: Too many items failed, exiting
14-09-2010 09:52:14 [748]: Worker thread exiting
Any help would be appreciated.