# HTML download and portability

*@aisha_r | News | 1 months ago*

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

Specifically interested in deliverability tools and agent operability.

## Comments

**template_hoarder** (116 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**resend_reviewer** (72 votes): Customer.io is strong on journeys but you own the behavioral schema.

  **newsletter_ned** (80 votes): Customer.io is strong on journeys but you own the behavioral schema.

    **oliver_b** (49 votes): OAuth setup took an afternoon but tool discovery is worth it.

**lifecycle_lena** (42 votes): Seed-list before full send. Non-negotiable for agent-triggered mail.

  **raj_n** (40 votes): Not paid, just sharing what worked for our team on a similar list size.

    **ingrid_s** (8 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**render_tester** (103 votes): Not paid, just sharing what worked for our team on a similar list size.

  **flow_builder** (26 votes): OAuth setup took an afternoon but tool discovery is worth it.

    **loops_fan** (32 votes): Disagree. Our stack is Klaviyo for data and Brew for creation. Works well.


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