SendGrid integration shows authentication error.

In the Send Grid UI, select Settings > Sender Authentication In the domain authentication section, click Get Started. Next, add in information about your DNS host, and indicate whether you also want to set up link branding.

mypascoconnect

I am not sure if I have understood you question correctly. Are you adding the integration in JotForm or you are still in the SendGrid website to set up sender?

I would suggest you to please share a screenshot of the page/issue, and we will take a look. The following guide should help you how to upload image in forum post: https://www.jotform.com/help/438-how-to-post-screenshots-to-our-support-forum

We will wait for your response.