Send email using Workers with MailChannels

What this post added

This post introduces a partnership with MailChannels to enable sending emails directly from Cloudflare Workers. It provides a code example for making a POST request to the MailChannels API from a Worker and demonstrates how to use the `@cloudflare/pages-plugin-mailchannels` for forms on Cloudflare Pages, simplifying email sending for contact forms and similar use cases without requiring separate email service accounts or domain validation.