@Tomomi Nakano - Thanks for the question and using MS Q&A platform.
SendGrid is currently not supported in the Microsoft Q&A platform; the supported products are listed over here https://docs.microsoft.com/en-us/answers/products (more to be added later on).
In order to assist best on your query, I would request you to post your query in SO => sendgrid or azure-marketplace dedicated support. Additionally, adding the [Azure] tag on SO will increase visibility as it is a Microsoft Sponsored tag.
https://stackoverflow.com/questions/tagged/sendgrid or https://stackoverflow.com/questions/tagged/azure-marketplace
This will assist you with a faster reply to your query.
OR
I recommend you to create a subscription management support ticket which is free of cost. The ticket enables you to work closely with the support engineers and get a quick resolution to your issue.
Steps to create support case: How to create a support ticket for Azure billing and subscription issues
If you have questions or need help, create a support request and choose Issue type as “subscription management” OR Call to “Global Customer Service phone numbers”.
Hope this helps. Do let us know if you any further queries.
If this answers your query, do click Accept Answer
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