I experienced the same error and the error did not make any sense what went wrong.
I found out that i was missing the `From` and `FromName` in my configurations. so in my code, I was hitting SendGrid API with `From` and `FromName` as `null`.
Hope it helps!
I experienced the same error and the error did not make any sense what went wrong.
I found out that i was missing the `From` and `FromName` in my configurations. so in my code, I was hitting SendGrid API with `From` and `FromName` as `null`.
Hope it helps!