Email APIs · side by side
Mailgun vs Robotomail
Compare Mailgun, Robotomail 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.
Mailgun
Robotomail
Mailgun
$90 / mo
Scale · 100K emails
Robotomail
$19 / mo
Starter · 50 inboxes
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 | Mailgun | Robotomail |
|---|---|---|
| Provider | Sinch | Robotomail |
| Billing unit | emails | inboxes |
| Plan at selected usage | Scale | Starter |
| Monthly estimate | $90/mo | $19/mo |
| Workload | 100K emails | 50 inboxes |
| Free access | 100 emails/day | Developer access varies |
| Published plans | Free, Basic, Foundation, Scale | Free, Starter, Growth, Scale |
| Prices checked | 2026-10-08 | 2026-10-08 |
- Mailgun
- Sinch
- Robotomail
- Robotomail
- Mailgun
- emails
- Robotomail
- inboxes
- Mailgun
- Scale
- Robotomail
- Starter
- Mailgun
- $90/mo
- Robotomail
- $19/mo
- Mailgun
- 100K emails
- Robotomail
- 50 inboxes
- Mailgun
- 100 emails/day
- Robotomail
- Developer access varies
- Mailgun
- Free, Basic, Foundation, Scale
- Robotomail
- Free, Starter, Growth, Scale
- Mailgun
- 2026-10-08
- Robotomail
- 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 | Mailgun | Robotomail |
|---|---|---|
| Support | Not listed | |
| Custom sending domains | 1,000 | Not listed |
| Log retention | 30 days | Not listed |
| Message retention | Up to 7 days | Not listed |
| Inbound routes | Full access | Not listed |
| Email validations | 5,000 included | Not listed |
| SAML SSO | Not listed | |
| Phone & chat support | Not listed | |
| Mailboxes | Not listed | 10 |
| Monthly sending per mailbox | Not listed | 15,000 |
| Daily per mailbox | Not listed | 500 |
| Monthly inbound | Not listed | 2,000 |
| Custom domains | Not listed | 1 |
| Storage | Not listed | 10 GB |
| Webhooks | Not listed | |
| SSE streaming | Not listed | |
| Dedicated IPs | Not listed | Not included — |
| MCP, CLI & API access | Not listed |
- Mailgun
- Not listed
- Robotomail
- Mailgun
- 1,000
- Robotomail
- Not listed
- Mailgun
- 30 days
- Robotomail
- Not listed
- Mailgun
- Up to 7 days
- Robotomail
- Not listed
- Mailgun
- Full access
- Robotomail
- Not listed
- Mailgun
- 5,000 included
- Robotomail
- Not listed
- Mailgun
- Robotomail
- Not listed
- Mailgun
- Robotomail
- Not listed
- Mailgun
- Not listed
- Robotomail
- 10
- Mailgun
- Not listed
- Robotomail
- 15,000
- Mailgun
- Not listed
- Robotomail
- 500
- Mailgun
- Not listed
- Robotomail
- 2,000
- Mailgun
- Not listed
- Robotomail
- 1
- Mailgun
- Not listed
- Robotomail
- 10 GB
- Mailgun
- Not listed
- Robotomail
- Mailgun
- Not listed
- Robotomail
- Mailgun
- Not listed
- Robotomail
- Not included —
- Mailgun
- Not listed
- Robotomail
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Which email providers fit your needs?
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
Robotomail features & plan notes
- Multi-tenant inboxes
- Event streaming
- Conversation threads
- 10 mailboxes
- 15,000 sends / month per mailbox
- 500 sends / day per mailbox
- 2,000 inbound / month
- 1 custom domain
- 10 GB storage
- Webhooks
- SSE streaming
- MCP, CLI & API access
- Email support
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