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Rocket supports six email and messaging integrations. This page helps you pick the right one for your project. Quick answer:
  • Transactional emails (receipts, password resets, notifications): Use Resend or SendGrid.
  • Marketing emails (campaigns, newsletters, drip sequences): Use Mailchimp, MailerLite, or Brevo.
  • SMS messages (verification codes, alerts, reminders): Use Twilio.
  • All-in-one (email + SMS + CRM in a single platform): Use Brevo.

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Comparison table

Scroll right to see all six services →

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Detailed recommendations

Use Resend.Resend is purpose-built for transactional emails with excellent deliverability and a clean developer API. It also works with Supabase SMTP, so you can route authentication emails (password resets, magic links) through Resend for consistent branding.Pair with: Supabase (auth) + Stripe (payments)
Use SendGrid.SendGrid handles high volume reliably and includes both transactional and marketing email features. It has robust analytics for open rates, click tracking, and bounce management.
Use Mailchimp or MailerLite.Both are excellent for marketing campaigns. Mailchimp has more advanced features (A/B testing, complex automations, audience segmentation). MailerLite is simpler and more affordable, with a generous free tier.
  • Choose Mailchimp if you need advanced segmentation and A/B testing.
  • Choose MailerLite if you want simplicity and a free plan for up to 500 subscribers.
Use Brevo.Brevo (formerly Sendinblue) combines transactional email, marketing campaigns, SMS messaging, and a built-in CRM in one platform. It is the best choice if you want everything in one place without managing multiple integrations.
Use Twilio.Twilio is the standard for SMS. Use it for verification codes, two-factor authentication, order updates, and appointment reminders.

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Browse email and messaging integrations

Resend

Developer-first transactional email with high deliverability.

SendGrid

High-volume email delivery for transactional and marketing.

Brevo

All-in-one email, SMS, and CRM (formerly Sendinblue).

MailerLite

Simple email marketing, newsletters, and automation.

Mailchimp

Email campaigns, audience management, and A/B testing.

Twilio

SMS messages for verifications, alerts, and notifications.