Is Mailgun or Postmark cheaper?

Mailgun has the lower entry price — Mailgun starts at $0/mo and Postmark at $0/mo.

Does Mailgun or Postmark support HIPAA?

HIPAA support — Mailgun: —; Postmark: —. Confirm current scope with the vendor.

Mailgun vs Postmark

A sourced, side-by-side comparison for transactional email. Mailgun has the lower entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.

Mailgun has the lower entry price — Mailgun starts at $0/mo, Postmark at $0/mo. Free tier: Mailgun Yes, Postmark Yes. HIPAA: Mailgun —, Postmark —.

As of 2026-09-03 · figures link to their source below

Side by side

Mailgun

$0/mo entry

Entry price$0/mo (Free)

Free tierYes

HIPAA (BAA)—

SOC 2Yes

GDPRYes

Best forDevelopers needing a mature API with SDKs across 6+ languages

Postmark

$0/mo entry

Entry price$0/mo (Free)

Free tierYes

HIPAA (BAA)—

SOC 2—

GDPRYes

Best forTeams where transactional deliverability is non-negotiable

Sources — Mailgun: mailgun.com (verified 2026-09-03) · Postmark: postmarkapp.com (verified 2026-09-03)

Key features

Mailgun: SOC 2 Type II and ISO/IEC 27001 certified (under Sinch ownership); Real-time email validation API to clean lists before sending; Inbound email parsing and routing (webhooks from received emails); Send-time optimization for per-recipient best delivery timing; SAML SSO on Scale tier and above

Postmark: Message Streams — separate infrastructure for transactional vs. promotional to protect deliverability; Inbound email processing (parse incoming emails into webhooks); MCP server integration for AI coding tools (Claude Code, Cursor, GitHub Copilot); 95%+ customer satisfaction rating; premium support included on all paid tiers; EU data protection and GDPR compliance with DPA available

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