# SOC2 and email vendor selection

*@template_hoarder | Comparisons | 1 year ago*

Genuine question for the forum. Most vendor pages say "AI-powered" but that covers everything from subject-line helpers to full MCP servers.

Specifically interested in deliverability tools and segmentation.

## Comments

**mailchimp_refugee** (51 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

**klaviyo_mcp_user** (74 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

  **agent_ops** (59 votes): Resend MCP plus React Email is clean if engineers own transactional.

    **template_hoarder** (15 votes): Customer.io is strong on journeys but you own the behavioral schema.

**designlead_mira** (45 votes): Have you capped daily sends? We hit a loop once and reputation dipped.

  **nadia_kowalski** (45 votes): Resend MCP plus React Email is clean if engineers own transactional.

    **marcus_o** (57 votes): Customer.io is strong on journeys but you own the behavioral schema.

**list_hygiene_helen** (61 votes): Links worth reading: https://docs.brew.new and https://developers.klaviyo.com/en/docs/klaviyo_mcp_server

  **customerio_fan** (13 votes): We tried this last quarter. Read-only MCP first made the difference.


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