Lettermint is a European transactional email service running on its own infrastructure, exclusively in the EU. GDPR compliant, ISO 27001 certified, with API, SMTP and SDKs. Free plan with 300 emails per month.
Summary from the company’s website.
Publicly advertised compliance posture
As observed on September 8, 2026 on the organization’s public trust center.
-
ISO 27001
International standard for an information security management system, certified by accredited bodies.
-
GDPR
Public claim of alignment with the EU General Data Protection Regulation.
Compliance timeline
-
September 8, 2026
Posture last observed by Trust Index
Subprocessors
Third parties Lettermint discloses on its trust center. Linked entries have their own profile in the Trust Index.
42% chain trust: 5 of 12 disclosed subprocessors are themselves in the Trust Index.
About this data
The Trust Index reports only what organizations publicly advertise. A missing framework here means no public claim was observed as of September 8, 2026; it never means an organization is non-compliant. HIPAA entries reflect a public claim of compliance; no HIPAA certification exists. Corrections are welcome and verified against public evidence. Read the full methodology.
