Mircosoft webhook URL connection throwing SSLHandshakeException

Question

When I'm trying to connect the webhook URL from Postman it works fine, But When I'm trying to connect from my UAT server I'm getting the below error.

I/O error on POST request for "https://xxxxx.webhook.office.com/webhookb2/xx@xxx/IncomingWebhook/3432432434": sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target; nested exception is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.

I know it's asking for a ca certificate but How Can I download the certificate for the webhook URL when I'm calling the URL from Chrome it's showing "This page isn’t working".

Any help will be highly appreciated

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](https://i.stack.imgur.com/dO4l1.png)

Answer 1

Please Track this issue from here-https://stackoverflow.com/questions/76774263/mircosoft-webhook-url-connection-throwing-sslhandshakeexception/76786605#76786605