# Loops for indie SaaS: still the default?

*@aisha_r | News | 2 years ago*

Deliverability question before we let an agent trigger more sends. What guardrails do you enforce?

Specifically interested in deliverability tools and deliverability.

## Comments

**skeptic_sam** (36 votes): Resend MCP plus React Email is clean if engineers own transactional.

  **agent_native_fan** (87 votes): We tried this last quarter. Read-only MCP first made the difference.

**brew_early_user** (90 votes): We tried this last quarter. Read-only MCP first made the difference.

**braze_bigco** (110 votes): Not paid, just sharing what worked for our team on a similar list size.

  **nadia_k** (66 votes): Customer.io is strong on journeys but you own the behavioral schema.

    **aisha_r** (70 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.


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