Exchange AntiVirus Exclusion lists
· https://support.microsoft.com/kb/328841
· https://support.microsoft.com/kb/245822
· Exchange 2003 - https://support.microsoft.com/kb/823166
· Exchange 2007 - https://technet.microsoft.com/en-us/library/bb332342(EXCHG.80).aspx
· Exchange 2010 - https://technet.microsoft.com/en-us/library/bb332342.aspx