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Postmark vs SendGrid

Provides both email delivery and marketing tools, but mixes transactional and marketing streams.

Which to pick

Pick Postmark if you want…

  • Fast, reliable transactional email
  • Transactional email API
  • Integrations with Python, Ruby or PHP (on Postmark's list, not SendGrid's)

Pick SendGrid if you want…

  • Scalable email API and marketing tools
  • Email delivery and marketing
  • Integrations with Twilio (on SendGrid's list, not Postmark's)

Postmark: Focused solely on transactional email delivery, less emphasis on marketing campaign tools

Side by side

What it is
Postmark:Postmark is an email delivery service for sending transactional and marketing emails via API or SMTP.
SendGrid:SendGrid provides an email API, SMTP service, and marketing campaign tools for sending transactional and bulk email at scale.
Best for
Postmark:Fast, reliable transactional email
SendGrid:Scalable email API and marketing tools
Who it’s for
Postmark:Developers and teams needing reliable email delivery.
SendGrid:Developers and marketers needing reliable email delivery and campaign management
Pricing
Postmark:Freemium
SendGrid:Contact sales
Plans
Postmark:Free $0.00/mo · Basic $15.00/mo per month · Pro $16.50/mo per month · Platform $18.00/mo per month
SendGrid:—
Works with
Postmark:Python, Ruby, PHP, cURL, SMTP
SendGrid:Twilio

Postmark features

  • Industry-leading deliverability. Ensures emails reach inboxes quickly with vetted IPs and strict spam controls.
  • Message Streams. Separates transactional and marketing emails on parallel infrastructures.
  • Inbound email processing. Converts inbound emails to JSON and forwards via webhooks.
  • Detailed analytics. Provides bounce data, open/link tracking, and activity retention.
  • Official SDKs. Libraries for many languages (Node, Python, Ruby, PHP, .NET, etc.) for easy integration.
  • Sandbox mode. Test email sending without affecting real recipients.

SendGrid features

  • Email API. Send transactional and bulk email via a RESTful API with high deliverability.
  • SMTP Service. Integrate traditional SMTP for sending email from existing systems.
  • Marketing Campaigns. Create, schedule, and track email marketing campaigns with flexible tools.
  • Documentation. Comprehensive guides and reference docs for quick integration.
  • Help Center. AI-assisted support for troubleshooting and questions.
  • Partner Ecosystem. Access partners for deliverability optimization and custom solutions.

Postmark vs SendGrid FAQ

Is Postmark or SendGrid free?+

Postmark has a free plan; paid plans start at $15/month (Basic).

Do Postmark and SendGrid integrate with the same tools?+

Their integration lists don't overlap: Postmark lists Python, Ruby, PHP, cURL and 1 more; SendGrid lists Twilio.

On DevHunt

Based on each tool's website and DevHunt data. Details may change; check the official sites.