Head-to-head · SMTP
Postmark vs SendGrid
Postmark is cheaper at lower volume; SendGrid becomes the better value from around 50,000 emails/month up. Costs are the base sending price; verified July 2026.
PostmarkPremium transactional deliverability and speed — priciest, but trusted for critical mail.
SendGridThe incumbent — huge scale and integrations, priced accordingly above the free trial.
| Emails / month | Postmark | SendGrid | Cheaper |
|---|---|---|---|
| 10k | $15/mo | $20/mo | Postmark |
| 50k | $87/mo | $35/mo | SendGrid |
| 100k | $177/mo | $35/mo | SendGrid |
| 250k | $447/mo | $249/mo | SendGrid |
| 500k | $897/mo | $449/mo | SendGrid |
| 1M | $1,797/mo | $749/mo | SendGrid |