by Mailgun (Sinch)Transactional email APIs
Email API from Sinch with SOC 2 Type II, ISO 27001, US or EU sending and SAML SSO on Scale.
SOC 2 Type II and ISO 27001 for Mailgun itself, US or EU sending from one account, and SAML SSO included at $90.
Mailgun covers the documents and controls that security-conscious and European customers ask for without an enterprise contract: its own SOC 2 Type II and ISO 27001 certifications, domains in the US or the EU managed from one account, and SAML SSO with phone support on the $90 Scale plan.
Against 3 other products we reviewed in Transactional email APIs: what you pay for with each, the five access facts, the plan limits we recorded and each review's bottom line. The note under the table says how each one was checked.
| Metric | Mailgun | Resend | Amazon SES | SendGrid |
|---|---|---|---|---|
| What you're paying for | Compliance includedSOC 2 Type II and ISO 27001 for Mailgun itself, US or EU sending from one account, and SAML SSO included at $90. | Compliance includedA SOC 2 Type II report and a pre-signed GDPR DPA on every plan, with 3,000 free emails a month and 50,000 for $20. | Worth the priceEmail at $0.10 per 1,000 with no monthly fee, inside AWS’s SOC, ISO 27001 and HIPAA-eligible scope, in the region you choose. | Compliance includedSAML SSO, a dedicated IP and EU data residency together on one self-serve plan at $89.95, with SOC 2 Type 2 across every plan. |
| Overall score | 7.5 | 8.2Best | 7.8 | 6.0 |
| Free option | Free plan | Free plan | Free trial | 60-day free trial |
| Card to start | –Not measured | –Not measured | –Not measured | No card needed |
| Getting access | Self-serve | Self-serve | Approval wait | Self-serve |
| Starter priceCheapest paid plan | $15/mo | $20/mo | $0.10/1k emails | $19.95/mo |
| Pricing model | Tiered | Tiered | Usage-based | Tiered |
| Pricing page | Public prices | Public prices | Public prices | Public prices |
| Free plan | 100 a day, 1 user | 3,000/mo, 100 a day | No; AWS Free Tier credits for new accounts | No; 60-day trial, 100 a day |
| Price for 50,000 emails/mo | $35 (Foundation) | $20 (Pro) | $5 à la carte ($8 on Essentials), plus attachment data | $19.95 (Essentials) |
| Retention on the entry paid plan | 1 day of logs (Basic) | 30 days | 30 days of message search in VDM (Essentials) | 3 days of email activity (Essentials) |
| SOC 2 report | Type II, plus ISO 27001 | Type II, self-serve download | AWS SOC 2, from AWS Artifact | Type 2 (Twilio, all services), on request |
| EU option | US or EU sending region | EU sending region; data stored in the US | Seven European AWS regions; data stays in the chosen region | EU data residency on Pro, via EU subusers |
| SSO | SAML on Scale ($90) | $150/mo add-on on Scale | IAM Identity Center, no extra charge | SAML on Pro ($89.95) |
| HIPAA BAA | Not mentioned | No | Yes, accepted in AWS Artifact | No; not on Twilio's HIPAA-eligible list |
| Bottom line | From its public pages, Mailgun is the most complete compliance package of the three, with an EU sending region and SSO on its $90 plan. On smaller plans, plan around short log retention. | From its public pages, Resend is the cheapest way here to send 50,000 emails a month and the easiest to clear a security review with. Check the data-residency and HIPAA limits first. | From its public pages, SES is the least expensive way here to send at volume and carries AWS’s compliance scope, including a HIPAA BAA. Plan for the sandbox review and for setting up each region you use. | From its public pages, SendGrid fits teams that want EU data residency, SSO and a dedicated IP on one self-serve plan. Check the 3-day history on Essentials and ask for the overage rate first. |
Evidence: Mailgun: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Resend: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Amazon SES: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; SendGrid: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run. Prices in USD as listed, excluding tax. "–" means not recorded.
Review from public pages
Written from Mailgun's public pages (pricing, security or privacy, and docs) as read on Oct 15, 2026. We did not sign up, and no hands-on run is published yet.
We read Mailgun's pricing, security and documentation pages on Oct 15, 2026; we did not sign up for this review. Mailgun is part of Sinch, and the pricing page lays out four send plans, from a free tier of 100 emails a day to Scale at $90 for 100,000 a month; Foundation and Scale start with a one-month free trial.
The security page lists SOC 2 Type II and ISO/IEC 27001 certification for Mailgun itself, GDPR compliance, two-factor authentication and SAML authentication. The documentation describes adding domains in the US or EU region and managing both from one control panel.
One detail needs care: the pricing table says dedicated IPs are available at 50,000 and included from 100,000, while the FAQ says one is included with Foundation 100k, Growth and Scale. Ask before you count on it.
Mailgun lists SOC 2 Type II and ISO 27001 for itself.
vs Postmark: Postmark points to its data center’s SOC 2 report; Resend holds SOC 2 Type II but not ISO 27001.
Domains can be created in the US or the EU and managed from one account.
vs Postmark: Resend stores data in the US even with an EU sending region; Postmark has no EU servers planned.
SAML SSO and phone and chat support are on the $90 Scale plan.
vs Resend: Resend charges $150/mo for SSO on its Scale plan.
Every plan except Free and Basic allows unlimited users.
Logs are kept 1 day on Free and Basic and 5 days on Foundation; 30 days needs Scale.
Free allows 100 emails a day, one custom domain and one user.
The pricing table and the FAQ describe dedicated IP inclusion differently; extra IPs are $59 per IP per month.
Mailgun prices by emails per month with overage per 1,000: Basic $15 for 10,000 ($1.80 over), Foundation $35 for 50,000 ($1.30 over), Scale $90 for 100,000 ($1.10 over). Foundation and Scale start with a one-month free trial.
What changes between plans is less the volume than the extras: log retention goes from 1 day (Basic) to 5 days (Foundation) to 30 days (Scale), users become unlimited from Foundation, and SAML SSO and phone support arrive on Scale. Extra dedicated IPs are $59 per IP per month.
From its public pages, Mailgun is the most complete compliance package of the three, with an EU sending region and SSO on its $90 plan. On smaller plans, plan around short log retention.
| Limit | As recorded |
|---|---|
| Free plan | 100 a day, 1 user |
| Price for 50,000 emails/mo | $35 (Foundation) |
| Retention on the entry paid plan | 1 day of logs (Basic) |
| SOC 2 report | Type II, plus ISO 27001 |
| EU option | US or EU sending region |
| SSO | SAML on Scale ($90) |
| HIPAA BAA | Not mentioned |
Read from the vendor's public pages on Oct 15, 2026. No hands-on run is published yet. How we check
We have not published a sign-up run for Mailgun yet. The access facts above were read from its sign-up and pricing pages on Oct 15, 2026.
We have not published API calls for Mailgun yet.
Mailgun lists 4 plans. The cheapest paid plan, Basic, costs $15/mo.
Prices as listed, USD, excluding tax; observed 2026-10-15.
Source: mailgun.com pricing page. Prices change; the observed date above is when our agent read them.
We read the pricing, security and docs pages of three transactional email APIs on the same day and scored them on the same six indicators. What each one sells, what 50,000 emails cost, and who should pick which.
