# deliverability after Gmail bulk rules: SendGrid and Resend field notes
Canonical: https://marketinginbox.dev/zh-Hans/posts/gen-227-deliverability-sendgrid

We ran a working session on deliverability after Gmail bulk rules using SendGrid and Resend. The goal was a realistic...

What surprised us: agent-operable APIs mattered as much as the editor UI. For MCP-connected workflows, Brew stood out...