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Klaviyo

By Alaa Touil. Reviewed by Rabeb. Read our testing methodology →

Klaviyo is an Ecommerce email platform founded in 2012, headquartered in US. Starting at $45/mo.

Explore Klaviyo on SMTPedia

ReviewOur hands-on verdict, ratings, and full editorial breakdown.PricingAll tiers, hidden fees, and the true cost per email.AlternativesThe best competitors ranked by use case and price.DeliverabilityInbox placement scores across Gmail, Outlook, and Yahoo.FeaturesEvery feature tested, categorized, and rated.SMTP settingsHostnames, ports, auth, rate limits, and setup gotchas.IntegrationsNative connectors, Zapier bridges, and API integrations.API + MCPREST endpoints, SDKs, rate limits, and MCP server support.TutorialStep-by-step setup, from signup to first campaign.

Frequently asked questions

Is Klaviyo worth it in 2026?

Our full editorial review covers pricing, deliverability, ease of use, support quality, and API/MCP maturity. Read the Klaviyo review →

How much does Klaviyo cost?

All pricing tiers, hidden fees, refund policy, and the true cost per email are broken down in the pricing tab. See Klaviyo pricing →

What are the best alternatives to Klaviyo?

Klaviyo ranked against 10+ competitors by use case, pricing, and switching cost. See alternatives →

What are the SMTP settings for Klaviyo?

Hostnames, ports, authentication, rate limits, and DKIM/SPF configuration for Klaviyo. See SMTP settings →

Does Klaviyo have an official MCP server?

Our API tab covers Klaviyo's REST API version, SDKs, rate limits, and MCP server support (official, community, and commercial wrappers). See API + MCP →

This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.

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