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BP6.7.1 automate.exe crashes while using MapiEx / DtaOLEDB

  • 1.  BP6.7.1 automate.exe crashes while using MapiEx / DtaOLEDB

    Posted 11-24-2020 04:17

    we face the following problem, we have set up the following infrastructure as part of a Blue Prism release change from BP5.0.24 to BP6.7.1.

    Windows 10 Version 1803 - 64-Bit Installation
    Office 365 - 32-Bit Installation
    MapiEx v2.0.6.0
    Access Database Engine provided by Microsoft installed in silent mode

    MapiEx and OLEDB work as individual components, as soon as I run both functions in succession, Blue Prism and automate.exe crashes. In Windows Event Log a .NET Runtime Error is listed in both directions. (even if I start first MapiEx send mail action - which is successfully and subsequently OLEDB Object - with crash of automate.exe or if I start with OLEDB which is successfully and subsequently MapiEx send mail action - with crash of automate.exe)

    Are there any suggestions from anyone? Seems to be a problem of multi threading caused by .Net?

    Jan Piwowarski
    Commerzbank AG

  • 2.  RE: BP6.7.1 automate.exe crashes while using MapiEx / DtaOLEDB

    Posted 11-24-2020 08:03
    I'm not sure about interaction between this two, but using MAPI from managed code is officially unsupported. MS suggests running mapi in a separate process.
    You can probably make it work like we did.. for a month or two, then it starts crashing once or twice a week, you give up and migrate to Outlook VBO, SMTP or EWS (or Graph?):
    - SMTP is for sending mail only, but that's fine if that is all you need. Using POP3/IMAP for receiving mail is not a great idea imo.
    - Outlook VBO is good, but it requires Outlook install and it is still interop. Solid choice.
    - Exchange Web Services managed API - it doesnt need Outlook installed or running, works for both on-premise Exchange and Online/365, but ...
    "Starting July 19th 2018, Exchange Web Services (EWS) will no longer receive feature updates."
    - ...and "the recommended access pattern for Office 365 and Exchange online data is Microsoft Graph instead", but that doesn't work for on-premise Exchange.
    I think Blueprism posted some Graph stuff on DX, but we have on-premise install, so I never bothered to check.

    p.s. there is also this good library, but commercial license and that also means writing your own VBO from scratch:

    Andrey Kudinov
    Project Manager
    MobileTelesystems PJSC



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