We had an issue where we were unable to open any new or old mail in any user’s mailbox. We then found that the antivirus software was reloaded on the Exchange servers and no exclusions where set. After stopping the antivirus software’s services we were able to open any mail as per usual. The exclusions where setup and services started. Exclusion list for Exchange 2003: EDB,MDB,LOG,NDX,ND4,ND3,ND2,MSL,ML,LDB,DGN,DBF,DBB                  Security Risk Extensions                Ignore C:Program FilesExchsrvr                                                                                            Security Risk Folder                         Ignore D:Program FilesExchsrvr                                                                                           Security Risk Folder                         Ignore E:Program FilesExchsrvr                                                                                            Security Risk Folder                         Ignore C:Program FilesSymantecSMSMSE4.0ServerTemp                                Security Risk Folder                         Ignore C:Program FilesSymantecSMSMSE4.0Quarantine                                    Security Risk Folder                        …