Postmark
Postmark provides an email delivery service with an Email API and SMTP service for developers and businesses.
Disclosed by 75 companies
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- Broadcom Inc.
Email delivery
“Endpoint Protection Mobile AC PM, LLC (ActiveCampaign) dba Postmark United States Email delivery” source · observed Jul 23, 2026
- BrowserStack
Email notifications for enterprise customers
“Postmark Email notifications for enterprise customers USA http://postmarkapp.com/” source · observed Jul 29, 2026
- Chroma Inc.
Email Processing
“Email Processing Postmark Security, Privacy USA” source · observed Jul 29, 2026
- Cognito Forms
Email Providers
“Cognito Forms uses Postmark, to send transactional emails from Cognito Forms to you and your customers on your behalf. These emails are specific to your organization, your forms, and your entries. Postmark only uses the information we share with them to send these emails.” source · observed Jul 23, 2026
- Content Snare
Transactional email (sending your requests and reminders to your clients)
“Postmark United States Transactional email (sending your requests and reminders to your clients)” source · observed Jul 28, 2026
- Contentsquare
Email delivery service
“Postmark User Tests and User Interviews features Email delivery service Participants Chicago, USA DPF SCCs” source · observed Jul 23, 2026
- CookieChimp
Transactional email
“Postmark Transactional email Email address, email content US Privacy Policy” source · observed Jul 30, 2026
- DealRoom Technologies, Inc.
Email delivery service
“Postmark Email delivery service United States” source · observed Jul 28, 2026
- EasyLlama, Inc.
Transactional messaging
“| Postmark | Transactional messaging | Continuous |” source · observed Jul 23, 2026
- FingerprintJS
transactional email
“Our transactional email provider, which has access to account email addresses.” source · observed Jul 29, 2026
- FreeAgent Central Limited
Email delivery service
“Email delivery service” source · observed Jul 23, 2026
- Frontify AG
Transactional email service
“ActiveCampaign (Postmark) AC PM, LLC 1 N Dearborn Street, Suite 500, Chicago, IL 60602 Transactional email service 45 days USA email address / IP address / geographical location inferred from IP address (regional level) / opening status Platform User No Adequate Jurisdiction (Provider is certified under the Data Privacy Framework)” source · observed Jul 29, 2026
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- Gleap GmbH
Communication & delivery
“Postmark (ActiveCampaign, LLC, USA) — server location: USA. Transactional email delivery.” source · observed Jul 29, 2026
- Graphisoft
Managing sales leads
“ActiveCampaign, LLC 1 N Dearborn St. 5th Floor Chicago, IL 60602 Managing sales leads” source · observed Jul 28, 2026
- Heartbeat Chat, Inc.
Transactional & marketing email
“Postmark — Massachusetts, USA — Transactional & marketing email” source · observed Jul 23, 2026
- HelpDocs Ltd
Analytics
“For more information on the privacy practices of Postmark, please visit the Postmark Privacy web page: https://postmarkapp.com/privacy-policy” source · observed Jul 23, 2026
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- KANSTANTSIN NESTSIAROVICH
Transactional email
“Postmark Transactional email GDPR-compliant; see Postmark's EU privacy information” source · observed Jul 23, 2026
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- LexisNexis Legal & Professional
Email notifications
“ActiveCampaign, LLC” source · observed Jul 29, 2026
- Lightspeed
Email delivery service
“ActiveCampaign, LLC Email delivery service eCom (E-Series) USA” source · observed Jul 29, 2026
- linear.app
Email delivery
“AC PM, LLC (Postmark) Email delivery United States” source · observed Jul 22, 2026
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- OpenProject GmbH
Newsletter distribution
“The dispatch of our newsletter is carried out by Postmark. The Standard Data Protection Clauses (Art. 46 para. 2 lit. c GDPR) apply here.” source · observed Jul 23, 2026
- Overloop SRL
IT Services
“ActiveCampaign, Inc (Postmark) 1 N Dearborn St Fl 5, Chicago, Illinois IT Services All data US Data Privacy Framework” source · observed Jul 30, 2026
- Perdoo GmbH
Email Infrastructure Service (Transactional / system mails)
“Postmark | 2400 Market Street, No. 200, Suite 235B, Philadelphia, PA 19103*Signed SCC’s in place. | Email Infrastructure Service (Transactional / system mails)” source · observed Jul 23, 2026