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    Nintex Knowledge Base

    Error "Unable to load address module" provisioning mailbox in Exchange

    Summary
    When provisioning a mailbox with a Nintex action in Microsoft Exchange, one of the following errors might occur: Unable to load address module 'C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\address\SMTP\AMD64\inp Or: Unable to generate the e-mail address.

    Solution

    Check the rights that the application pool account of the Exchange Connector Service Application has to Exchange.

    Should be a member of the below Security Groups 

    Exchange Organization
    Administrators
    Local Administrators
    Local IIS_WPG

    Reference 

    The Exchange Connector guide is located in the manual extraction of the Nintex Workflow Installer. Under the directory Workflow\Supporting