Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\14.0\Outlook\Preferences]
"MaximumAttachmentSize"=dword:0000c350

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Preferences]
"MaximumAttachmentSize"=dword:0000c350

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Preferences]
"MaximumAttachmentSize"=dword:0000c350