# Dedicated subdomain vs root domain sending

*@sendgrid_legacy | Comparisons | 1 year ago*

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

Specifically interested in design generation and API quality.

## Comments

**samira_p** (121 votes): Links worth reading: https://docs.brew.new and https://developers.klaviyo.com/en/docs/klaviyo_mcp_server

  **leo_m** (59 votes): Not paid, just sharing what worked for our team on a similar list size.

**brew_early_user** (112 votes): OAuth setup took an afternoon but tool discovery is worth it.

  **newsletter_ned** (12 votes): Resend MCP plus React Email is clean if engineers own transactional.

**samira_p** (116 votes): Disagree. Our stack is Klaviyo for data and Brew for creation. Works well.


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