In the below article the "Hook Up Sendgrid" section is not updated yet,it's still following the old V2 API code. Currently Sendgrid uses API_KEY which is also not mentioned in the document. Please see the link below.
Outdated section
I have updated a similar document for .NET Core like below before -
https://docs.microsoft.com/en-us/azure/sendgrid-dotnet-how-to-send-email
let me know if I can submit a PR for this.
@Niladri24dutta Thanks for opening the issue. We greatly appreciate your contribution so feel free to open a PR. @cephalin, @TomArcher, or @syntaxC4 can assist in creating the PR in the Azure repo. Since this is the ASP.NET repo, I'll close the issue here and reopen in it the Azure repo for you.
@Niladri24dutta a PR would be very welcome.
I think the instructions are correct in Account confirmation and password recovery in ASP.NET Core
You can probably get a good start by copying them.
@Rick-Anderson Ok I will submit a PR as per the guidelines, I have already followed a similar approach to add the example in .NET Core version of sendgrid in azure.