# Show: our agent-driven welcome flow using Customerio

*@sofia_l | Deliverability | 2 years ago*

Context: B2B SaaS team, 400k monthly sends. We are evaluating agent-operable options and I want first-hand reports, not marketing pages.

Specifically interested in MCP and deliverability.

## Comments

**compliance_carl** (21 votes): Customer.io is strong on journeys but you own the behavioral schema.

  **transactional_tina** (24 votes): Seed-list before full send. Non-negotiable for agent-triggered mail.

**agent_native_fan** (64 votes): OAuth setup took an afternoon but tool discovery is worth it.

  **devmode_kk** (98 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**nadia_k** (8 votes): Seed-list before full send. Non-negotiable for agent-triggered mail.

  **transactional_tina** (75 votes): We tried this last quarter. Read-only MCP first made the difference.


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[View on Email Agora](https://emailagora.co/posts/show-our-agent-driven-welcome-flow-using-customerio-152)