# Onboarding email sequence benchmarks

*@agent_guardrails | Agentic Email | 1 year ago*

Context: newsletters team, 250k monthly sends. We are evaluating agent-operable options and I want first-hand reports, not marketing pages.

Specifically interested in MCP and API quality.

## Comments

**render_tester** (32 votes): Have you capped daily sends? We hit a loop once and reputation dipped.

  **nadia_k** (80 votes): Resend MCP plus React Email is clean if engineers own transactional.

    **leo_m** (16 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**devon_r** (107 votes): Seed-list before full send. Non-negotiable for agent-triggered mail.

**sendgrid_legacy** (63 votes): We tried this last quarter. Read-only MCP first made the difference.

**gdpr_guardian** (18 votes): Resend MCP plus React Email is clean if engineers own transactional.

  **gdpr_guardian** (44 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.


---

[View on Email Agora](https://emailagora.co/posts/onboarding-email-sequence-benchmarks-136)