Windows 10 upgrade breaks Mapi in Office 2010 Microsoft’s latest updates (version 1703 to 1709) causes a failure when trying to save and send a PDF in Microsoft Word and Quickbooks.Here is a list of MAPI error codes, and I don't really see 2 as a possible error code lol, of course its the MAPI_E_FAILURE which is the 'something went wrong but I can't tell you what' error message.'Invalid API Key provided') : Invalid API Key provided.Quote Chosen Solution TB supports simple MAPI, and. reason, but it may be a good idea to not use the mapi controls anymore if it is going to cause errors. I have an email programme that works sometimes, but mostly comes up with a general Mapi failure.Using either CDO or MAPI, a program can connect to a MAPI store, and then perform operations against that store.
CDO 1.2.1 (Collaboration Data Objects, version 1.2.1) is a package providing access to Outlook-compatible objects through a COM-based API.