Mailgun
Tool
Email API and SMTP service for sending, receiving and tracking email, with email validation tools.
~/tools/postmark
Postmark
Postmark is a tool listed under Email Marketing (deliverability). Email delivery service for transactional and marketing email, sent through an API or SMTP. Features include sending by api and smtp, message streams separating promotional and transactional mail and sender vetting and deliverability guidance. Pricing model: freemium. Listed for email deliverability.
ToolEmail MarketingFreemium
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01 What it does#
Postmark is an email delivery service that sends transactional and promotional email through an API or SMTP. It separates promotional and transactional mail into message streams and provides sender vetting, deliverability guidance and official client libraries.
Plans start at 10,000 emails per month and are billed monthly, with a free plan of 100 emails per month. Add-ons include dedicated IPs, custom activity retention and DMARC monitoring.
02 Features (10 listed)#
- Sending by API and SMTP
- Message streams separating promotional and transactional mail
- Sender vetting and deliverability guidance
- Official client libraries for several languages
- Inbound email processing on Pro and Platform plans
- Webhook notifications for delivery, bounce and other events
- Dedicated IP add-on
- Custom activity retention add-on
- DMARC monitoring add-on
- Migration guides from other providers
Features as described on the vendor's own pages. Plan limits can change what is included.
03 Best for and not for#
Probably not ideal for
- No annual plans
Use casesEmail Deliverability
04 Pricing#
Model: Freemium (free tier plus paid plans).
| Plan | Price as listed | Limits stated |
|---|---|---|
| Free | $0.00/mo | 100 emails per month; no overages |
| Basic | $15.00/mo | from 10,000 emails per month; extra emails $1.80 per 1,000; 5 custom sending domains; 45-day data retention |
| Pro | $16.50/mo | from 10,000 emails per month; extra emails $1.30 per 1,000; 10 custom sending domains; inbound email processing |
| Platform | $18.00/mo | from 10,000 emails per month; extra emails $1.20 per 1,000; unlimited custom sending domains; inbound email processing |
Free plan: 100 emails per month, no overages, does not expire
Lowest paid tier (Basic): monthly. Only monthly billing; annual plans are not offered. Visible prices show a $ symbol only. Add-ons: dedicated IPs from $50/month per IP (300,000+ emails per month, Pro or higher), custom activity retention from $5/month, DMARC monitoring from $14/month per domain. The pricing page says there is no time-limited trial, while the home page links a free trial sign-up with no credit card.
Prices change: confirm on the vendor's site before you buy.
05 Support, setup and links#
- Free plan
- 100 emails per month, no overages, does not expire
- API
- Yes
06 Company and compliance (as stated by the vendor)#
- GDPR
- The security page says compliance, data protection and security teams prepared the services for GDPR and links to an EU privacy page
These are the vendor's own statements, not an audit. Vendor trust page · Documentation
07 Alternatives#
Mailjet
Tool
Email platform combining marketing campaigns and an email API, with a drag-and-drop editor and SMTP relay.
MailerSend
Tool
Transactional email service with API and SMTP sending, templates, webhooks, verification and SMS.
Email MarketingEmail Deliverability
$5.60/mo, billed yearlyOfficial site ↗ (opens in a new tab)
Resend
Tool
Email API for developers covering transactional and marketing email, inbound mail, templates and webhooks.
Similar in this category
Same category, sharing at least one use case. Not an endorsement.
Google dashboards showing spam rate, domain reputation, authentication and delivery errors for mail sent to Gmail.
08 Questions answered#
- What is Postmark?
- Email delivery service for transactional and marketing email, sent through an API or SMTP.
- Does Postmark have a free plan?
- Yes. The vendor lists a free plan: 100 emails per month, no overages, does not expire.
- Does Postmark have an API?
- Yes. The vendor documents an API (see the documentation link on this page).
- What plans does Postmark list?
- The pricing page lists Free $0.00/mo (100 emails per month; no overages), Basic $15.00/mo (from 10,000 emails per month; extra emails $1.80 per 1,000; 5 custom sending domains; 45-day data retention), Pro $16.50/mo (from 10,000 emails per month; extra emails $1.30 per 1,000; 10 custom sending domains; inbound email processing), Platform $18.00/mo (from 10,000 emails per month; extra emails $1.20 per 1,000; unlimited custom sending domains; inbound email processing). Prices change, so confirm on the vendor's site.
- What security and compliance does Postmark state?
- GDPR: The security page says compliance, data protection and security teams prepared the services for GDPR and links to an EU privacy page. These are the vendor's own statements, not an audit.
- How do you get support for Postmark?
- It has public documentation. See the links on this page.
- How is Postmark priced?
- The pricing model is freemium. Prices change, so confirm on the vendor's site before you buy.
09 Cite this page#
Digital Marketing Mind. "Postmark", tool listing. https://digitalmarketingmind.com/tools/postmark/