I'm on a Windows 2003 server with SP2, Exchange 2003 standard w SP2, Symantec Enterprise and GFI Mail essentials. Today we started having problems with the server not sending or receiving email. When I logged onto the server the DEP (Data Execution Protection). I upgraded the server to W2K3 SP2 in an attempt to resolve the issue. However, as soon as rebooted and logged back in I started receiving error messages that the IIS worker process failed to start. The DEP settings are currently set to on for all programs and services except those I select. The following are selected: autdlsvc, IIS worker process, Internet Information Services.
Not long after the restart the exchange went down again with the error that the Exchange system manager failed to retrievce queues for the SMTP Virtual Server (error code= 0x800706D9). I've also checked the event logs, and I've two different event IDs that seem to relate to my current problem. After looking into those events, I updated the NIC drivers to the most current verision, ran diagnostics on the nics without errors, and rebooted again. The same issues occurred again. Any help would be greatly appreciated. Thanks.