Email Marketing

Postmark

US-ownedUnited StatesVerified June 2026

Vendor site

Transactional email service by ActiveCampaign.

Detected by domain patterns

postmarkapp.compstmrk.it

European alternatives

Brevo (FR)Mailjet (FR)Mailgun EU regions

GDPR & Data Residency

Postmark is owned by a US company. Under GDPR Chapter V, transferring personal data to the US requires an appropriate safeguard (typically Standard Contractual Clauses or adequacy decisions. The 2020 Schrems II ruling invalidated Privacy Shield and increased scrutiny on US data transfers, requiring case-by-case Transfer Impact Assessments (TIAs).

If your website loads Postmark scripts or sends user data to their servers, your users' data may be processed in the United States. Review Postmark's DPA (Data Processing Agreement) and ensure it covers SCCs.

Tip: Consider replacing Postmark with one of the EU-based alternatives listed above to simplify GDPR compliance and remove cross-border transfer obligations.