# SSL issue - certificate signed by unknown authority **URL:** \ **Category:** API and Webhooks\ **Created:** [October 4, 2021, 10:48am UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344 "2021-10-04T10:48:15Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![rahul.sharma](https://avatars.discourse-cdn.com/v4/letter/r/c37758/32.png) [@rahul.sharma](https://devforum.zoom.us/u/rahul.sharma)\ **Post date:** [October 4, 2021, 10:48am UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/1 "2021-10-04T10:48:15Z")
**Description** I have integrated the zoom with mattermost. And i can see i am not able to use zoom plugin. After validating the account its returning an error I have tried multiple times. But still its the same issue. I am using Godaddy SSL Certificate for the domain. **Error** “Post “[https://zoom.us/oauth/token](https://zoom.us/oauth/token)”: x509: certificate signed by unknown authority” **Which App Type (OAuth / Chatbot / JWT / Webhook)?** OAuth **Which Endpoint/s?** [https://mattermost.jnettechnologies.com/plugins/zoom/oauth2/complete](https://mattermost.jnettechnologies.com/plugins/zoom/oauth2/complete) **How To Reproduce (If applicable)** Steps to reproduce the behavior: 1. Its showing when in callback ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [October 5, 2021, 7:37pm UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/2 "2021-10-05T19:37:49Z")
Hey @rahul.sharma, Thank you for reaching out to the Zoom Developer Forum. How are you making this request from your GoDaddy server? Are you using cURL, a programming language, or something else? Are you able to reproduce this issue when using different REST clients from that environment? Thanks, Max ---
**Author:** ![rahul.sharma](https://avatars.discourse-cdn.com/v4/letter/r/c37758/32.png) [@rahul.sharma](https://devforum.zoom.us/u/rahul.sharma)\ **Post date:** [October 7, 2021, 1:01pm UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/3 "2021-10-07T13:01:11Z")
Hello MaxM, I am using Mattermost [https://mattermost.com/](https://mattermost.com/) with Zoom plugin integration. I have created an app and connected with the api key and secret key. The problem here is zoom is unable to detect the chain of ssl certificate for the domain. [](https://fv9-3.failiem.lv/thumb_show.php?i=tt5fux8bg&view) ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [October 12, 2021, 10:02am UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/4 "2021-10-12T10:02:08Z")
Hey @rahul.sharma, Do you get this same error when hitting Zoom from Postman, cURL/terminal, etc.? This seems like it’s likely an environment issue. Thanks, Will ---
**Author:** ![rahul.sharma](https://avatars.discourse-cdn.com/v4/letter/r/c37758/32.png) [@rahul.sharma](https://devforum.zoom.us/u/rahul.sharma)\ **Post date:** [October 12, 2021, 10:28am UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/5 "2021-10-12T10:28:20Z")
The issue is with the callback not with the api’s. The api’s are working fine. Only Zoom unable to detect the SSL certificate for the domain. I guess! ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [October 15, 2021, 11:01am UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/6 "2021-10-15T11:01:17Z")
Thanks for confirming, @rahul.sharma. Have you tried checking out a resource such as StackOverflow, etc., for suggestions on this? Thanks, Will ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [November 14, 2021, 9:01pm UTC](https://devforum.zoom.us/t/ssl-issue-certificate-signed-by-unknown-authority/58344/7 "2021-11-14T21:01:20Z")
Closed on November 14, 2021, 9:01pm UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.