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 vendor's own page and 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 2026-06-13 · 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 2026-06-13) · Postmark: postmarkapp.com (verified 2026-06-13)

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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