Tracked subprocessors 1 of 2 Subprocessor of 149 Third parties loaded 6 Loaded by 0
+ − ⟲
Not loaded by any published homepage.
Postmark's homepage made 64 requests to 12 domains, and 6 services controlled by another company.
Advertising (2): OpenAI, X Corp. Analytics (2): Google Cloud; usually detected as Analytics: SmartBear Software Cookie compliance (1): CookieYes Unclassified (1): no technology detected from them: Servd 6 third parties by category: 2 2 1 1
Third parties 6 · 36 requests
Google Cloud Google Analytics Google Tag Manager 16% of the page's requests 10 CookieYes CookieYes 14% of the page's requests 9 Servd svdcdn.com 14% of the page's requests 9
OpenAI ChatGPT Ads Measurement Pixel 5% of the page's requests 3 X Corp. Twitter Ads 5% of the page's requests 3
First party 1 · 28 requests
Postmark Cloudflare HSTS HTTP/3 Open Graph Priority Hints Prism Snowplow Analytics scrollreveal 44% of the page's requests 28
4 tracked companies loaded by the homepage are not in Postmark's subprocessor list. A website can use a service without it processing customer data.
149 companies
1Password 1password.com Customer support Abusix abusix.com Delivery of transactional and notification emails.; Transactional email Aleph getaleph.com Email delivery Alguna alguna.com Transactional email Alke Tech alketech.eu Altvia altvia.com Email message delivery and mailing statistics Arrows arrows.to Application email service; Sends transactional and notification emails from the application AspirePro aspirepro.io Inbound email processing for email-to-ticket Attio attio.com Email Delivery Balsamiq balsamiq.com Transactional email delivery Binti binti.com Email delivery; Email delivery service provider. Bird bird.com Dashboard - Log management and Analysis software Blinq blinq.me Blissbook blissbook.com Transactional email BoldDesk bolddesk.com Email Service Provider; Email to ticket inbound processor BoldSign boldsign.com Email service provider; Sending transactional emails on behalf of the SaaS provider BrightLocal brightlocal.com Email sending services BrowserStack browserstack.com Email notifications for enterprise customers Buttondown buttondown.com Email delivery and transactional email services Camino joincamino.com Transactional email delivery — sends system notifications, onboarding emails, and task reminders Capacity capacity.com Sends time-sensitive transactional emails and scheduling notifications for Capacity Scheduling, ensuring reliable delivery of workflow alerts.; Transactional email delivery Ceros ceros.com Engineering; Relevant Customer Data: The name and email provided by a customer during Pilot acceptance. Chameleon Intelligent Tech chameleon.io Communications and Personalization Chatra chatra.com Email infrastructure Civic Roundtable civicroundtable.com Notifications; Sends emails. Clay clay.com Email service provider ClientSuccess clientsuccess.com Email Service Provider Cloutly cloutly.com Transactional and campaign email delivery Clozd clozd.com Email delivery services. [ActiveCampaign Data Protection and Security Center](; Required CoachAccountable coachaccountable.com Email sending CodeSignal codesignal.com Email Delivery; Email Delivery Service Concord concord.app Transactional text message sender Contentsquare contentsquare.com Email delivery service Conveyor conveyor.com Email CookieChimp cookiechimp.com Transactional email Credly by Pearson info.credly.com Email services for the Motiva product; Used to send invitation emails to Learners CustomerOS customeros.ai Cloud email service DataForSEO dataforseo.com DitchCarbon ditchcarbon.com Transactional email Dock dock.us Email delivery Dotfile dotfile.com Engineering; Transactional email delivery Drata drata.com [Drata and SafeBase] Postmark provides transactional email delivery services used to send system-generated emails from the platform and helps ensure reliable and secure email delivery to users. EasyLlama easyllama.com Transactional messaging Edmentum edmentum.com Email delivery Enchant enchant.com Email Processing Eptura eptura.com Transactional Email Management Ethos askethos.com Transactional email delivery services E Everapi everapi.com EverTrue evertrue.com Email service provider Fathom fathom.ai Email Provider Fathom Analytics usefathom.com Transactional email Feedbucket feedbucket.app Transactional email delivery, where emails may contain Customer Personal Data Feedly Threat Intelligence feedly.com Email Delivery Fillout fillout.com FingerprintPro fingerprint.com Formative formative.com Email Notification Services G Gamma gamma.app Customer communications Gleap gleap.ai server location: USA. Transactional email delivery. Goldcast goldcast.io Email delivery service, SMS Text messages GuestTix guesttix.com Email delivery HackerRank hackerrank.com Sending invite and confirmation emails to candidates for assessments and interviews Handhold handhold.io Email delivery Heron herondata.io Hotjar hotjar.com Email delivery service Humaans humaans.io Transactional emails InEvent inevent.com Email processing as part of a global email delivery network Infracost infracost.io Product emails; Sending user emails Journeybee journeybee.io Customer Service Kolide kolide.com Customer support Kustomer kustomer.com Email Channel; For the EMail Channel Integration + transactional emails Laravel laravel.com Transactional email LEGALFLY legalfly.com Email Delivery Linear linear.app Email delivery LiquidPlanner liquidplanner.com Service Notifications; Transactional email delivery for product notifications, reminders, and other email automation and tracking delivery metrics. LiveSession livesession.io Email service provider Loadster loadster.app Outbound Email Lucky Orange luckyorange.com Email Delivery Luma luma.com Email delivery Master Inbox masterinbox.com Transactional email delivery Matter matterapp.com Service emails Medallia medallia.com Provides email routing and delivery services. memoQ memoq.com Customer Service Newsela newsela.com Email Notification Services NoDataNoBusiness nodatanobusiness.com Sends transactional emails such as account confirmations and notifications. One Horizon onehorizon.ai Sending transactional email Oneleet oneleet.com Email Communications Paddle paddle.com Email Service; Transactional email service Padlet padlet.com Email Notification Services Paperform paperform.co Processing period: April 5, 2024 - present Data disclosed: Submission data: information captured during the form submission process Patlytics patlytics.ai Engineering; Sends reliable, fast transactional email for applications (e.g., password resets, notifications). Perdoo perdoo.com Picqer picqer.com We use Postmark to send emails to your customers and suppliers from within Picqer. Postmark is operated by AC PM LLC, an ActiveCampaign company. Plain plain.com Email Infrastructure; Email processing Portant portant.co Transactional email delivery Postcall postcall.io PowerSchool powerschool.com Email Communications Product Fruits productfruits.com Emailing; Emailing in connection with services (e.g., when you create account for your employee) Productlane productlane.com Outbound email delivery for customer inboxes PromoteKit promotekit.com transactional email and notification delivery. PropelAuth propelauth.com Email management Proposales proposales.com Proposify proposify.com Cloud-based Email Notification Services ProsperStack prosperstack.com Transactional email Pylon usepylon.com Email Quaderno quaderno.io Email delivery service Railway railway.com Email Processing Remind1 remind1.com Email delivery Replicated replicated.com Transactional emails from Vendor Portal. Marketing related communications. Responsly responsly.com Email delivery, including survey invitations Rewardful rewardful.com Engineering; Postmark is a cloud platform offering transactional email delivery, tracking, and management tools to help businesses communicate efficiently and reliably with customers while ensuring high deliverability and security. RingCentral ringcentral.com Email delivery Rootstuff rootstuff.io Transactional and alert email delivery. RWX rwx.com Transactional email delivery SatisMeter satismeter.com ScreenSteps screensteps.com Email notification services; Engineering Secure Privacy secureprivacy.ai Email administration and sending service Segment segment.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services Seline seline.com Transactional email SendGrid sendgrid.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services SerpApi serpapi.com email delivery Session Rewind sessionrewind.com Automated platform email notifications Sessionize sessionize.com Postmark handles the delivery of email messages from our system to organizers and speakers. SightCall sightcall.com Email Sending SimpleDocs simpledocs.com e-mail delivery service Skio skio.com In-service communications sparkpost sparkpost.com Dashboard - Log management and Analysis software Sprout Social sproutsocial.com Steady runsteady.com transactional email delivery Supabase supabase.com Communication with Authorized Users in connection with the provision of the Services and support Supademo supademo.com Transactional email delivery Superthread superthread.com Email sending Syncfusion syncfusion.com Email Service Provider; Sending transactional emails SynergyOS synergyos.com Email notification provider Tackle.io tackle.io Customer Email and Marketing Tellent Recruitee recruitee.com Email Delivery Platform Text text.com Email services through the Postmark product; Marketing TribeMap tribemap.ai Transactional and report email Tropic tropicapp.io Email service provider Tuple tuple.app Transactional application email Twilio twilio.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services Ubicloud ubicloud.com Email delivery platform UpGuard upguard.com Email delivery service Urlbox urlbox.com User Interviews userinterviews.com Sends transactional emails to Researchers and Participants Userflow userflow.com Veritonic veritonic.com WorkOS workos.com Core Product; Email Delivery Zeplin zeplin.io Zeplin uses Postmark to provide email services, for transactional emails and for service notifications. Postmark infrastructure processes some Zeplin email traffic and provides some email security services. ZITADEL zitadel.com We use Postmark to send transactional mails to clients. Your data might be processed by Postmark when using our services, especially when you have not configured your own SMTP service.; [Zitadel Cloud] Transactional emails (Optional) Aug 15: no incident reported Aug 16: no incident reported Aug 17: no incident reported Aug 18: 1 incident (1 no impact stated) Aug 19: no incident reported Aug 20: no incident reported Aug 21: no incident reported Aug 22: no incident reported Aug 23: no incident reported Aug 24: 1 incident (1 no impact stated) Aug 25: no incident reported Aug 26: no incident reported Aug 27: no incident reported Aug 28: no incident reported Aug 29: no incident reported Aug 30: no incident reported Aug 31: no incident reported Sep 1: no incident reported Sep 2: no incident reported Sep 3: no incident reported Sep 4: no incident reported Sep 5: no incident reported Sep 6: no incident reported Sep 7: no incident reported Sep 8: no incident reported Sep 9: no incident reported Sep 10: no incident reported Sep 11: no incident reported Sep 12: no incident reported Sep 13: no incident reported Sep 14: no incident reported Sep 15: no incident reported Sep 16: no incident reported Sep 17: 1 incident (1 no impact stated) Sep 18: no incident reported Sep 19: no incident reported Sep 20: no incident reported Sep 21: no incident reported Sep 22: 1 incident (1 no impact stated) Sep 23: no incident reported Sep 24: no incident reported Sep 25: no incident reported Sep 26: no incident reported Sep 27: no incident reported Sep 28: 2 incidents (2 no impact stated) Sep 29: no incident reported Sep 30: no incident reported Oct 1: no incident reported Oct 2: no incident reported Oct 3: no incident reported Oct 4: no incident reported Oct 5: no incident reported Oct 6: no incident reported Oct 7: no incident reported Oct 8: no incident reported Oct 9: no incident reported Oct 10: no incident reported Oct 11: no incident reported Oct 12: no incident reported Oct 13: no incident reported Oct 14: no incident reported Oct 15: no incident reported Oct 16: no incident reported Oct 17: no incident reported Oct 18: no incident reported Oct 19: no incident reported Oct 20: no incident reported Oct 21: no incident reported Oct 22: no incident reported Oct 23: no incident reported Oct 24: no incident reported Oct 25: no incident reported Oct 26: no incident reported Oct 27: 1 incident (1 no impact stated) Oct 28: no incident reported Oct 29: no incident reported Oct 30: no incident reported Oct 31: no incident reported Nov 1: no incident reported Nov 2: no incident reported Nov 3: no incident reported Nov 4: 1 incident (1 no impact stated) Nov 5: 1 incident (1 no impact stated) Nov 6: no incident reported Nov 7: no incident reported Nov 8: no incident reported Nov 9: no incident reported Nov 10: no incident reported Nov 11: no incident reported Nov 12: no incident reported 90 days ago today
10 incidents in 90 days0 major or critical3 h 32 min typical time to resolveIncidents per month 0 3 6 Mar 2026: 5 incidents (5 no impact stated) · partial: our history begins Mar 4 · typical time to resolve 2 h 9 min Apr 2026: 3 incidents (3 no impact stated) · typical time to resolve 6 h 3 min May 2026: 2 incidents (2 no impact stated) · typical time to resolve 27 h 20 min Jun 2026: 3 incidents (3 no impact stated) · typical time to resolve 27 h 7 min Jul 2026: 1 incident (1 no impact stated) · typical time to resolve 6 h 15 min Aug 2026: 3 incidents (3 no impact stated) · typical time to resolve 16 h 50 min Sep 2026: 4 incidents (4 no impact stated) · typical time to resolve 2 h 5 min Oct 2026: 1 incident (1 no impact stated) · typical time to resolve 1 h 43 min Nov 2026: 2 incidents (2 no impact stated) · typical time to resolve 5 h 53 min Mar 2026 Apr May Jun Jul Aug Sep Oct Nov critical major minor no impact stated before or partly before our history
As Postmark's status page reports its own incidents (scheduled maintenance left out), read every few hours since Mar 4, 2026 (evidence )
See the list as we read it on any date: Time machine
None since tracking began.
Postmark1Password 1password.com Customer support
Abusix abusix.com Delivery of transactional and notification emails.; Transactional email
Aleph getaleph.com Email delivery
Alguna alguna.com Transactional email
Alke Tech alketech.eu
Altvia altvia.com Email message delivery and mailing statistics
Arrows arrows.to Application email service; Sends transactional and notification emails from the application
AspirePro aspirepro.io Inbound email processing for email-to-ticket
Attio attio.com Email Delivery
Balsamiq balsamiq.com Transactional email delivery
Binti binti.com Email delivery; Email delivery service provider.
Bird bird.com Dashboard - Log management and Analysis software
Blinq blinq.me
Blissbook blissbook.com Transactional email
BoldDesk bolddesk.com Email Service Provider; Email to ticket inbound processor
BoldSign boldsign.com Email service provider; Sending transactional emails on behalf of the SaaS provider
BrightLocal brightlocal.com Email sending services
BrowserStack browserstack.com Email notifications for enterprise customers
Buttondown buttondown.com Email delivery and transactional email services
Camino joincamino.com Transactional email delivery — sends system notifications, onboarding emails, and task reminders
Capacity capacity.com Sends time-sensitive transactional emails and scheduling notifications for Capacity Scheduling, ensuring reliable delivery of workflow alerts.; Transactional email delivery
Ceros ceros.com Engineering; Relevant Customer Data: The name and email provided by a customer during Pilot acceptance.
Chameleon Intelligent Tech chameleon.io Communications and Personalization
Chatra chatra.com Email infrastructure
Civic Roundtable civicroundtable.com Notifications; Sends emails.
Clay clay.com Email service provider
ClientSuccess clientsuccess.com Email Service Provider
Cloutly cloutly.com Transactional and campaign email delivery
Clozd clozd.com Email delivery services. [ActiveCampaign Data Protection and Security Center](; Required
CoachAccountable coachaccountable.com Email sending
CodeSignal codesignal.com Email Delivery; Email Delivery Service
Concord concord.app Transactional text message sender
Contentsquare contentsquare.com Email delivery service
Conveyor conveyor.com Email
CookieChimp cookiechimp.com Transactional email
Credly by Pearson info.credly.com Email services for the Motiva product; Used to send invitation emails to Learners
CustomerOS customeros.ai Cloud email service
DataForSEO dataforseo.com
DitchCarbon ditchcarbon.com Transactional email
Dock dock.us Email delivery
Dotfile dotfile.com Engineering; Transactional email delivery
Drata drata.com [Drata and SafeBase] Postmark provides transactional email delivery services used to send system-generated emails from the platform and helps ensure reliable and secure email delivery to users.
EasyLlama easyllama.com Transactional messaging
Edmentum edmentum.com Email delivery
Enchant enchant.com Email Processing
Eptura eptura.com Transactional Email Management
Ethos askethos.com Transactional email delivery services
EverTrue evertrue.com Email service provider
Fathom fathom.ai Email Provider
Fathom Analytics usefathom.com Transactional email
Feedbucket feedbucket.app Transactional email delivery, where emails may contain Customer Personal Data
Feedly Threat Intelligence feedly.com Email Delivery
Fillout fillout.com
FingerprintPro fingerprint.com
Formative formative.com Email Notification Services
Gleap gleap.ai server location: USA. Transactional email delivery.
Goldcast goldcast.io Email delivery service, SMS Text messages
GuestTix guesttix.com Email delivery
HackerRank hackerrank.com Sending invite and confirmation emails to candidates for assessments and interviews
Handhold handhold.io Email delivery
Heron herondata.io
Hotjar hotjar.com Email delivery service
Humaans humaans.io Transactional emails
InEvent inevent.com Email processing as part of a global email delivery network
Infracost infracost.io Product emails; Sending user emails
Journeybee journeybee.io Customer Service
Kolide kolide.com Customer support
Kustomer kustomer.com Email Channel; For the EMail Channel Integration + transactional emails
Laravel laravel.com Transactional email
LEGALFLY legalfly.com Email Delivery
Linear linear.app Email delivery
LiquidPlanner liquidplanner.com Service Notifications; Transactional email delivery for product notifications, reminders, and other email automation and tracking delivery metrics.
LiveSession livesession.io Email service provider
Loadster loadster.app Outbound Email
Lucky Orange luckyorange.com Email Delivery
Luma luma.com Email delivery
Master Inbox masterinbox.com Transactional email delivery
Matter matterapp.com Service emails
Medallia medallia.com Provides email routing and delivery services.
memoQ memoq.com Customer Service
Newsela newsela.com Email Notification Services
NoDataNoBusiness nodatanobusiness.com Sends transactional emails such as account confirmations and notifications.
One Horizon onehorizon.ai Sending transactional email
Oneleet oneleet.com Email Communications
Paddle paddle.com Email Service; Transactional email service
Padlet padlet.com Email Notification Services
Paperform paperform.co Processing period: April 5, 2024 - present Data disclosed: Submission data: information captured during the form submission process
Patlytics patlytics.ai Engineering; Sends reliable, fast transactional email for applications (e.g., password resets, notifications).
Perdoo perdoo.com
Picqer picqer.com We use Postmark to send emails to your customers and suppliers from within Picqer. Postmark is operated by AC PM LLC, an ActiveCampaign company.
Plain plain.com Email Infrastructure; Email processing
Portant portant.co Transactional email delivery
Postcall postcall.io
PowerSchool powerschool.com Email Communications
Product Fruits productfruits.com Emailing; Emailing in connection with services (e.g., when you create account for your employee)
Productlane productlane.com Outbound email delivery for customer inboxes
PromoteKit promotekit.com transactional email and notification delivery.
PropelAuth propelauth.com Email management
Proposales proposales.com
Proposify proposify.com Cloud-based Email Notification Services
ProsperStack prosperstack.com Transactional email
Pylon usepylon.com Email
Quaderno quaderno.io Email delivery service
Railway railway.com Email Processing
Remind1 remind1.com Email delivery
Replicated replicated.com Transactional emails from Vendor Portal. Marketing related communications.
Responsly responsly.com Email delivery, including survey invitations
Rewardful rewardful.com Engineering; Postmark is a cloud platform offering transactional email delivery, tracking, and management tools to help businesses communicate efficiently and reliably with customers while ensuring high deliverability and security.
RingCentral ringcentral.com Email delivery
Rootstuff rootstuff.io Transactional and alert email delivery.
RWX rwx.com Transactional email delivery
SatisMeter satismeter.com
ScreenSteps screensteps.com Email notification services; Engineering
Secure Privacy secureprivacy.ai Email administration and sending service
Segment segment.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services
Seline seline.com Transactional email
SendGrid sendgrid.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services
SerpApi serpapi.com email delivery
Session Rewind sessionrewind.com Automated platform email notifications
Sessionize sessionize.com Postmark handles the delivery of email messages from our system to organizers and speakers.
SightCall sightcall.com Email Sending
SimpleDocs simpledocs.com e-mail delivery service
Skio skio.com In-service communications
sparkpost sparkpost.com Dashboard - Log management and Analysis software
Sprout Social sproutsocial.com
Steady runsteady.com transactional email delivery
Supabase supabase.com Communication with Authorized Users in connection with the provision of the Services and support
Supademo supademo.com Transactional email delivery
Superthread superthread.com Email sending
Syncfusion syncfusion.com Email Service Provider; Sending transactional emails
SynergyOS synergyos.com Email notification provider
Tackle.io tackle.io Customer Email and Marketing
Tellent Recruitee recruitee.com Email Delivery Platform
Text text.com Email services through the Postmark product; Marketing
TribeMap tribemap.ai Transactional and report email
Tropic tropicapp.io Email service provider
Tuple tuple.app Transactional application email
Twilio twilio.com Postmark Routes, transmits, and delivers of outbound email communications for specific Twilio Products and Services
Ubicloud ubicloud.com Email delivery platform
UpGuard upguard.com Email delivery service
Urlbox urlbox.com
User Interviews userinterviews.com Sends transactional emails to Researchers and Participants
Userflow userflow.com
Veritonic veritonic.com
WorkOS workos.com Core Product; Email Delivery
Zeplin zeplin.io Zeplin uses Postmark to provide email services, for transactional emails and for service notifications. Postmark infrastructure processes some Zeplin email traffic and provides some email security services.
ZITADEL zitadel.com We use Postmark to send transactional mails to clients. Your data might be processed by Postmark when using our services, especially when you have not configured your own SMTP service.; [Zitadel Cloud] Transactional emails (Optional)
