MailerSend, Inc.
MailerSend provides an email API and SMTP service for sending transactional emails, targeting businesses of all sizes.
Subprocessors (9)
Processed Jul 29, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| SMS services | “When providing SMS services, MailerSend uses third-party SMS service provider Bandwidth to which MailerSend transfers your data.” source | |
| recurring payments | “To manage recurring payments and subscriptions, MailerSend utilizes Braintree, a service provided by PayPal. Braintree assists us in securely handling transaction data and ensuring the continuity of your Service subscriptions.” source | |
| scheduling | “For coordinating user interviews and sales calls, we use online calendar and scheduling platform Calendly, their Privacy Notice here.” source | |
| customer approval process | “MailerSend uses OpenAI’s technology and Google’s Vertex AI platform to automate the customer approval process by submitting Customers’ content to OpenAI’s technology and Google’s Vertex AI platform.” source | |
| template translation | “When you use this feature, the content of your selected template, including any Personal Data you decide to insert, is transmitted to Google Cloud Translation to generate a translated version.” source | |
| Processing email addresses for status updates | “If you have subscribed to status updates on MailerSend's Status Page, your email address will be processed and notifications sent by a third party, incident.io. View their Privacy Policy here.” source | |
| customer approval process | “MailerSend uses OpenAI’s technology and Google’s Vertex AI platform to automate the customer approval process by submitting Customers’ content to OpenAI’s technology and Google’s Vertex AI platform.” source | |
| product analysis | “MailerSend utilizes PostHog to analyze product usage and perform A/B testing. This includes the collection of anonymized events and session recordings where sensitive data fields are strictly obfuscated. This data is used solely for internal product optimization.” source | |
| affiliate program | “For the purposes of running our Affiliate Program, MailerSend uses the affiliate tracking and management platform TrackDesk. If you participate in the Affiliate Program as an affiliate, your data, such as name, IP address, contact, and billing details, will be processed and stored within TrackDesk.” source |
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SMS services
“When providing SMS services, MailerSend uses third-party SMS service provider Bandwidth to which MailerSend transfers your data.” source
-
recurring payments
“To manage recurring payments and subscriptions, MailerSend utilizes Braintree, a service provided by PayPal. Braintree assists us in securely handling transaction data and ensuring the continuity of your Service subscriptions.” source
-
scheduling
“For coordinating user interviews and sales calls, we use online calendar and scheduling platform Calendly, their Privacy Notice here.” source
-
customer approval process
“MailerSend uses OpenAI’s technology and Google’s Vertex AI platform to automate the customer approval process by submitting Customers’ content to OpenAI’s technology and Google’s Vertex AI platform.” source
-
template translation
“When you use this feature, the content of your selected template, including any Personal Data you decide to insert, is transmitted to Google Cloud Translation to generate a translated version.” source
-
Processing email addresses for status updates
“If you have subscribed to status updates on MailerSend's Status Page, your email address will be processed and notifications sent by a third party, incident.io. View their Privacy Policy here.” source
-
customer approval process
“MailerSend uses OpenAI’s technology and Google’s Vertex AI platform to automate the customer approval process by submitting Customers’ content to OpenAI’s technology and Google’s Vertex AI platform.” source
-
product analysis
“MailerSend utilizes PostHog to analyze product usage and perform A/B testing. This includes the collection of anonymized events and session recordings where sensitive data fields are strictly obfuscated. This data is used solely for internal product optimization.” source
-
affiliate program
“For the purposes of running our Affiliate Program, MailerSend uses the affiliate tracking and management platform TrackDesk. If you participate in the Affiliate Program as an affiliate, your data, such as name, IP address, contact, and billing details, will be processed and stored within TrackDesk.” source