Committed to keeping your data safe and secure.

We host our servers in a secure data center and use the latest security practices to protect our customer’s data. Set up two-factor authentication and advanced permissions to provide an extra layer of security for your account.

Two-factor authentication.

Add an extra layer of security to your account with two-factor authentication (2FA). You can use a range of popular 2FA apps (Google Authenticator, 1Password, and Authy) or get codes sent to your mobile phone by SMS. Printable backup codes give you emergency access to your account if your device is lost.

Two-factor authentication set up

Advanced user permissions.

Do you manage a large team? Postmark gives you detailed user permissions so you can control who has access to each of your servers.

It’s simple to give team members access to your entire account or just a single server. You can even add observers who can review message history but not edit or delete a server.

User permissions

Email and application security.

Out of the box, Postmark supports opportunistic TLS for all outbound email, ensuring messages are encrypted in transit to remote mail servers and ISPs who support TLS. Gmail lists us as delivering 100% of our email via TLS. Combining this with full HTTPS and TLS support on our SMTP and API endpoints provides safe passage for messages flowing through Postmark.

We also fully support and encourage use of email standards like DKIM, SPF, and DMARC, giving you control over your domain’s reputation and reducing the risk of email spoofing.

We host our servers in one of the most impressive data centers in the country, a Type 2 SSAE 16 SOC 1 accredited facility. In addition, our systems are regularly tested using both automated systems and manual audits from respected security firms.

Read more about security and reliability

Privacy Shield compliance.

We know how vital it is that your providers satisfy data protection requirements when transferring personal data from the European Union and Switzerland to the United States. That’s why we have fully certified our compliance compliance with the EU-U.S. Privacy Shield Framework.

We’re committed to subjecting all personal data received from European Union (EU) member countries to the framework’s applicable principles. You can read more about this on our privacy policy.

Still have questions?

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Ask us anything! We’re eager to help you with any problem or question you have…