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I'm developing a Outlook add-in for reporting email and use Advanced Installer to build the package. I added a proper certificate key into Registry when building the EXE file but our client got certificate issue when opening the Outlook below:

Publisher cannot be verified

I could not reproduce this issue on my PC. I'm not sure what need to do to get rid of this popup. Please support. Thanks.

deHaar
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Dinh Ha
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  • What is that proper certificate? One that is meant for code signing? You did buy that certificate, right? Is the CA trusted on that client machine? – rene Dec 13 '19 at 08:13

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this is my certificate . We just meet this error on Microsoft outlook 2019.

Dinh Ha
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