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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.

