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Small and medium business | Business Central, N...

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How do i resolve the issue of "The SMTP mail system returned the following error: "The remote certificate is invalid according to the validation procedure.".

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Posted on by Sujoy Mandal

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Is it the problem of Server Certification issue?

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Inge M. Bruvik 1,057 Moderator on at

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RE: How do i resolve the issue of "The SMTP mail system returned the following error: "The remote certificate is invalid according to the validation procedure.".

This usually occurs because either,

certificate is self-signed and not added as a trusted certificate.

certificate is expired.

certificate is signed by a root certificate that's not installed on your machine.

Please check the certificates and let us know. Hope it helps.

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