A Program is Trying to Send an Email Message on your Behalf - Office 2019 and Reckon

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Had an issue with a client they could not email via RECKON 2019, I found this and worked perfectly.


Correct Values for Office 2016 ProPlus ClickToRun (O365)

The following keys need to be added to registry:

Key: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\<version>\Outlook\Security

Value name: AdminSecurityMode
Value type: REG_DWORD
Value: 3

Key: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\<version>\Outlook\Security

Value name: PromptOOMSend
Value name: PromptOOMAddressBookAccess
Value name: PromptOOMAddressInformationAccess
Value name: PromptOOMMeetingTaskRequestResponse
Value name: PromptOOMSaveAs
Value name: PromptOOMFormulaAccess
Value name: PromptSimpleMAPISend
Value name: PromptSimpleMAPINameResolve
Value name: PromptSimpleMAPIOpenMessage
Value type: REG_DWORD
Value: 2