SendGrid Alternative: Why Developers Are Switching

Why developers look for SendGrid alternatives

SendGrid has been a go-to email API for years, but several pain points push teams to evaluate alternatives:

• Pricing complexity — add-on fees for dedicated IPs, email validation, and advanced features make the real cost hard to predict
• Free tier limitations — 100 emails/day cap makes it impractical for testing at realistic volumes
• Support quality — response times have increased since the Twilio acquisition, especially on lower-tier plans
• Account suspensions — aggressive anti-abuse policies sometimes flag legitimate senders without clear resolution paths
• Dated developer experience — the API and dashboard haven't kept pace with newer alternatives

RelayPost vs SendGrid: Feature comparison

Pricing comparison

SendGrid prices from their public pricing page. Additional fees may apply for features like dedicated IPs, email validation, and Marketing Campaigns.

Developer experience comparison

Sending an email with RelayPost:

// RelayPost — send an email
const res = await fetch("https://api.relaypost.dev/v1/emails/send", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    from: "[email protected]",
    to: "[email protected]",
    subject: "Welcome aboard",
    html: "<p>Thanks for signing up.</p>"
  })
});

Sending an email with SendGrid:

// SendGrid — send an email
const sgMail = require("@sendgrid/mail");
sgMail.setApiKey(process.env.SENDGRID_API_KEY);

await sgMail.send({
  to: "[email protected]",
  from: "[email protected]",
  subject: "Welcome aboard",
  html: "<p>Thanks for signing up.</p>"
});

Both approaches work. RelayPost uses a standard REST API with no SDK dependency — you can send emails with fetch in any language. SendGrid requires their SDK or a more verbose raw API call.

When SendGrid might be the better choice

We believe in honest comparisons. SendGrid may be better if you:

• Need enterprise-grade SLAs backed by Twilio's infrastructure
• Already have deep SendGrid integrations that would be costly to migrate
• Require email validation as a built-in feature
• Need phone/chat support on a 24/7 basis

Frequently asked questions