Mailgun vs Postmark

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Mailgun

See full pricing history

USD · US · source: www.mailgun.com

Plan	Pricing	Charged by	Offer type
Free	Free $0/	Flat	Standalone · Free
Foundation	USD 35 monthly $35/mo	Flat · /mo	Standalone · Fixed
Scale	USD 90 monthly $90/mo	Flat · /mo	Standalone · Fixed

Postmark

See full pricing history

USD · US · source: postmarkapp.com

Plan	Pricing	Charged by	Offer type
Free — Developer tier	Free $0.00 /mo	Flat · per month	Standalone · Free
Basic — Basic	USD 15 monthly $15.00 /mo	Flat · per month	Standalone · Fixed
Pro — Pro Highlighted	USD 16.5 monthly $16.50 /mo	Flat · per month	Standalone · Fixed
Platform — Platform	USD 18 monthly $18.00 /mo	Flat · per month	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Mailgun

Free

Highlights Features include:: Included
Highlights 100 emails per day: Included
Highlights Ticket support: Included
Highlights RESTful email APIs and SMTP relay: Included
Highlights 1 custom sending domain: Included
Highlights Tracking, analytics, and webhooks: Included
Highlights 2 API keys: Included
Highlights Email analytics and reporting: Included
Highlights 1 day log retention: Included
Highlights 1 inbound route: Included

Foundation

Highlights Everything on Basic plus...: Included
Highlights Full access to RESTful email APIs and SMTP relays: Included
Highlights 1,000 custom sending domains: Included
Highlights Email template builder and API: Included
Highlights Tracking, analytics, and webhooks: Included
Highlights 5 days log retention: Included
Highlights 1 day message retention: Included
Highlights Full access to inbound routing: Included

Scale

Highlights Everything on Foundation plus...: Included
Highlights SAML SSO: Included
Highlights 5,000 email validations: Included
Highlights Dedicated IP pools: Included
Highlights Send time optimization: Included
Highlights Live phone & chat support: Included
Highlights 30 days log retention: Included
Highlights Up to 7 days message retention: Included
Highlights Schedule and send analytics reports: Included

Postmark

Free — Developer tier

Highlights Emails per month: 100 emails/month

Included
Highlights Daily email limit: Unlimited

Included
Highlights Inbound Email - Transactional Message Streams: Up to 30 streams

Included
Highlights Servers: Up to 10 servers

Included
Highlights Custom sending domains: Up to 10 domains

Included
Highlights Email template editor & import tool: Included

Included
Highlights Full message retention: 45 Days

Included
Highlights Users: Up to 6 users

Included

Basic — Basic

Highlights Emails per month: Starting at 10,000 emails/month

Included
Highlights Extra emails: $1.80 / 1,000

Included
Highlights Daily email limit: Unlimited

Included
Highlights Inbound Email - Transactional Message Streams: Up to 15 streams

Included
Highlights Servers: Up to 5 servers

Included
Highlights Custom sending domains: Up to 5 domains

Included
Highlights Email template editor & import tool: Included

Included
Highlights Full message retention: 45 Days

Included
Highlights Users: Up to 4 users

Included

Pro — Pro

Highlights Emails per month: Starting at 10,000 emails/month

Included
Highlights Extra emails: $1.30 / 1,000

Included
Highlights Daily email limit: Unlimited

Included
Highlights Inbound Email - Transactional Message Streams: Up to 30 streams

Included
Highlights Servers: Up to 10 servers

Included
Highlights Custom sending domains: Up to 10 domains

Included
Highlights Email template editor & import tool: Included

Included
Highlights Full message retention: 45 Days (custom retention available as add-on)

Included
Highlights Users: Up to 6 users

Included
Highlights Inbound email processing: Included

Included

Platform — Platform

Highlights Emails per month: Starting at 10,000 emails/month

Included
Highlights Extra emails: $1.20 / 1,000

Included
Highlights Daily email limit: Unlimited

Included
Highlights Inbound Email - Transactional Message Streams: Unlimited

Included
Highlights Servers: Unlimited

Included
Highlights Custom sending domains: Unlimited

Included
Highlights Email template editor & import tool: Included

Included
Highlights Full message retention: 45 Days (custom retention available as add-on)

Included
Highlights Users: Unlimited users

Included
Highlights Inbound email processing: Included

Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Mailgun

August 27, 2026 Source
- Free: Free
- Foundation: USD 35 monthly
- Scale: USD 90 monthly

Postmark

August 27, 2026 Source
- Free — Developer tier: Free
- Basic — Basic: USD 15 monthly
- Pro — Pro: USD 16.5 monthly
- Platform — Platform: USD 18 monthly