Choose Postmark if you need
- Integration with Zapier, Supabase or Stripe. We haven't found them on SendGrid's website.
At a glance
- Postmark has a free plan. We haven't confirmed one for SendGrid.
- Both offer a free trial (Postmark: length not stated, SendGrid: 60 days).
- Postmark's lowest paid plan is Basic at $15.00 per month for 10,000 emails, as of October 20, 2026.
- SendGrid's lowest paid plan is Essentials at $19.95 per month, starting price, for 50,000 to 100,000 emails, as of October 20, 2026.
- Both are available on API and SMTP.
- They list no integrations in common.
- Both list GDPR.
- Only SendGrid lists SOC 2 and SSO.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose SendGrid if you need
- Integration with Microsoft Azure, Google or Amazon Marketplace. We haven't found them on Postmark's website.
- SOC 2 or SSO. We haven't found them on Postmark's website.
Postmark
Nobody has reviewed Postmark yet. Its rating shows once it has 3 reviews.
Review Postmark
SendGrid
Nobody has reviewed SendGrid yet. Its rating shows once it has 3 reviews.
Review SendGridThe facts
- What it does
- PostmarkThe email delivery service that people actually like
- SendGridCreate, send, and manage emails at scale through RESTful APIs or SMTP relay
- Free plan
- PostmarkYes
- SendGridNot confirmed
- Pricing
- PostmarkNot confirmed
- SendGridPer email volume, monthly
- Paid plans from
- Postmark
What they share
From the platforms and integrations each website lists.
Platforms
Both
- API
- SMTP
Only PostmarkNothing else listed
Only SendGridNothing else listed
Integrations
BothNone in common
Only Postmark
- Zapier
- Supabase
- Stripe
- Slack
- Datadog
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Postmark and SendGrid yet.
Used either of them?
Your review makes this comparison better for the next person. Review Postmark or review SendGrid.