How to Send Emails in Rust With SendGrid

The author of the text outlines a step-by-step guide to sending emails in Rust using SendGrid's API, as there isn't a pre-existing helper library available for Rust. The process involves setting up a new Rust project with required crates and environment variables, defining a struct to model email senders and recipients, writing the main function to authenticate against SendGrid's API and construct an email request body, creating a Reqwest client object to make the call to SendGrid's API, and testing the application. The guide assumes prior experience with Rust and Cargo, as well as having a free SendGrid account and verified email addresses for sending and receiving emails.

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