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Email Infrastructure

Klaviyo

Email and SMS marketing automation.

Free plan
Klaviyo website: Email and SMS marketing automation.
Image from Klaviyo
Category
Email Infrastructure
Use case
Marketing automation
Team fit
SMB–Mid-market

What it is used for

Marketing automation

Email and SMS marketing automation

Who it is for

Built for SMB–Mid-market teams.

Deliverability controls

Review authentication, suppression, bounce handling, monitoring, and the support available during delivery issues.

Technical fit

Check API, SMTP, event, template, and integration requirements against your application or sales stack.

When it fits

Use it when

  • You send from your own domains and need authentication.
  • Someone owns bounces, suppression, and reputation.
  • The product workflow needs events, not only a mailbox.

Skip it when

  • You can stay on a simple mailbox provider.
  • No one will watch deliverability after go-live.
  • Compare Mailgun if you need email infrastructure instead.

How to start

  1. Separate marketing from sales mail

    Don’t blast from the domain you use for 1:1 outreach.

  2. Authenticate everything

    SPF, DKIM, DMARC before volume.

  3. Watch bounces daily

    Infrastructure problems show up as reputation, not as a pretty dashboard.

Pricing

Free plan

Free planper month

  • Paid email from about $20–$45 per month as the list grows.

Confirm current plans on Klaviyo before you buy. Prices checked 30 Sep 2026.

Sending volume without authentication, consent, and bounce handling can damage the domain. Confirm those controls before you scale.

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