Email APIs · side by side
Courier vs Mailgun
Compare Courier, Mailgun by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Courier
Mailgun
Courier
$0 / mo
Developer · 0 sends
Mailgun
$90 / mo
Scale · 100K emails
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | Courier | Mailgun |
|---|---|---|
| Provider | trycourier.com, Inc. | Sinch |
| Billing unit | sends | emails |
| Plan at selected usage | Developer | Scale |
| Monthly estimate | $0/mo | $90/mo |
| Workload | 0 sends | 100K emails |
| Free access | Developer plan includes 10,000 free sends per month with journeys, broadcasts, SDKs, CLI, and MCP server support. | 100 emails/day |
| Published plans | Developer, Business, Enterprise | Free, Basic, Foundation, Scale |
| Prices checked | 2026-10-08 | 2026-10-08 |
- Courier
- trycourier.com, Inc.
- Mailgun
- Sinch
- Courier
- sends
- Mailgun
- emails
- Courier
- Developer
- Mailgun
- Scale
- Courier
- $0/mo
- Mailgun
- $90/mo
- Courier
- 0 sends
- Mailgun
- 100K emails
- Courier
- Developer plan includes 10,000 free sends per month with journeys, broadcasts, SDKs, CLI, and MCP server support.
- Mailgun
- 100 emails/day
- Courier
- Developer, Business, Enterprise
- Mailgun
- Free, Basic, Foundation, Scale
- Courier
- 2026-10-08
- Mailgun
- 2026-10-08
Email APIs monthly cost
Different workloads, separate estimates
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Email APIs feature comparison
| Email APIs | Courier | Mailgun |
|---|---|---|
| Number of notification | 10,000 per month | Not listed |
| Log retention | 7 days | 30 days |
| Custom sending domains | Not listed | 1,000 |
| Message retention | Not listed | Up to 7 days |
| Inbound routes | Not listed | Full access |
| Email validations | Not listed | 5,000 included |
| SAML SSO | Not listed | |
| Phone & chat support | Not listed |
- Courier
- 10,000 per month
- Mailgun
- Not listed
- Courier
- 7 days
- Mailgun
- 30 days
- Courier
- Not listed
- Mailgun
- 1,000
- Courier
- Not listed
- Mailgun
- Up to 7 days
- Courier
- Not listed
- Mailgun
- Full access
- Courier
- Not listed
- Mailgun
- 5,000 included
- Courier
- Not listed
- Mailgun
- Courier
- Not listed
- Mailgun
Which email providers fit your needs?
Courier features & plan notes
- Multi-channel routing across email, SMS, push, in-app inbox, Slack, Teams, and WhatsApp via a single API
- Drop-in notification center and toasts for web and mobile applications
- Visual template builder and journey workflows with automatic provider failover across 50+ integrations
- Developer and AI tooling including official MCP server, CLI, and client/server SDKs
- Pay-as-you-go pricing at $0.005 per send on all channels with no per-seat fees
- 10,000 sends per month
- Journeys & broadcasts
- MCP server, CLI, & SDKs
- SSO via Google, Github
- Email & chat support
Mailgun features & plan notes
- Email validation
- Inbound routing
- EU region
- SAML SSO
- 5,000 email validations
- Dedicated IP pools
- 30 days log retention
- Extra emails from $1.10 / 1,000
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricing