What is needed Need to make the following sample to work.

[CasperKvolle]

What is need in the following screendump?
I have been sitting several days now and trying to make this code sample work but without any luck.

I have put the

BUT every time I try to make it run the error comes:

"Unauthenticated senders not allowed"

Any other information you want to share that is relevant to the issue being reported. Especially, why do you consider this to be a bug? What do you expect to happen instead?

Technical details:

• sendgrid-csharp Version: master (latest commit: [commit number])
• Platform (WebForms, ASP.NET, ASP.NET Core, etc.)
• .NET Version: 4.5.2

[thinkingserious]

Hello @CasperKvolle,

You will need to make sure that the credentials you are setting are getting set properly. If so, then I would try testing your key here: https://sendgrid.com/docs/API_Reference/api_v3.html. If it still does not work, please either create a new API Key or reach out to our support team so that they can investigate your account.

With Best Regards,

Elmer