SendGrid Mail Settings for Dev/Test

We now have a SendGrid mail service set up within Azure.

It is on a free tier, meaning that we can send 25,000 emails a month for Dev and Test purposes.

Details are as follows:

We can also create API keys instead of using passwords.

There may be additional setup required, but that will be managed on a case-by-case basis.

The service itself resides within the RG-Dev-Main resource group in Azure.