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SendPulse SMTP API

Transactional email sending, delivery and bounce tracking, unsubscribe management and sender-domain identity.

SendPulse SMTP API is one of 19 APIs that SendPulse publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Transactional Email, SMTP, and Deliverability. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 17 operations across 14 paths, organized into 4 resource areas, and defines 3 schemas. It is described by OpenAPI 3.1.2, at version 1.0.0.

Requests are made against a single base URL, https://api.sendpulse.com.

17 operations 14 paths 3 schemas 1 DELETE10 GET6 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.2
API Version
1.0.0
Base URL
https://api.sendpulse.com
Authentication
HTTP Bearer, OAuth 2.0
License
Apache 2.0
Resource Areas
4

Authentication & Security 2

SendPulse SMTP API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (API Key) (apiKey). It supports OAuth 2.0 (oauth2) using the clientCredentials flow. By default, every request must be authenticated.

  • apiKey — Static API Key authentication. A long-lived token generated manually in the SendPulse account settings.
  • oauth2 — OAuth 2.0 Client Credentials flow for temporary access tokens.

Paths & Operations 17

Across 14 paths, the API surfaces 17 operations — 1 DELETE, 10 GET, 6 POST. They span 4 resource areas: Emails, Bounces, Unsubscribe, Configuration. Each is listed below with its method, path, parameters, and response codes.

Emails 5
POST
/smtp/emails
Send an email
sendSmtpEmail body → 200401403422
GET
/smtp/emails
Get a list of emails
getSmtpEmails 7 params → 200401403422
GET
/smtp/emails/total
Get total amount of sent emails
getSmtpEmailsTotal → 200401403422
GET
/smtp/emails/{id}
Get information about a specific email
getSmtpEmailInfo 1 param → 200400401403
POST
/smtp/emails/info
Get information for a list of emails
getSmtpEmailsBatchInfo body → 200400401403
Bounces 2
GET
/smtp/bounces/day
Get information about bounces for a 24-hour period
getSmtpBouncesDay 3 params → 200401403
GET
/smtp/bounces/day/total
Get total number of bounces
getSmtpBouncesTotal → 200401403
Unsubscribe 5
POST
/smtp/unsubscribe
Unsubscribe a recipient
unsubscribeSmtpRecipients body → 200400401403
DELETE
/smtp/unsubscribe
Remove an email from the unsubscribed list
removeSmtpUnsubscribe body → 200400401403
GET
/smtp/unsubscribe
Get a list of unsubscribed users
getSmtpUnsubscribed 3 params → 200401403422
GET
/smtp/unsubscribe/search
Get information about a contact's subscription status
searchSmtpUnsubscribe 1 param → 200401403422
POST
/smtp/resubscribe
Resubscribe a recipient
resubscribeSmtpRecipient body → 200401403422
Configuration 5
GET
/smtp/ips
Get a list of sender’s IP addresses
getSmtpIps → 200401403
GET
/smtp/senders
Get a list of sender’s email addresses
getSmtpSenders → 200401403
GET
/v2/email-service/smtp/sender_domains
Get a list of allowed domains
getSmtpAllowedDomains → 200401403
POST
/senders
Add a sender email
addSmtpSender body → 200401403422
POST
/v2/email-service/smtp/sender_domains/{domain}
Add a domain
addSmtpDomain 1 param → 200401403

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are EmailRecord (12 properties), DomainRecord (8 properties), Error (2 properties). Each schema is shown below with its type and property counts.

Error
object
2 properties
EmailRecord
object
12 properties
DomainRecord
object
8 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

sendpulse-smtp-openapi.yml Raw ↑

Other APIs SendPulse publishes across the network.

SendPulse Bulk Email API
SendPulse SMS API
SendPulse CRM Public API
SendPulse Automation 360 API
SendPulse Chatbots Service API
SendPulse WhatsApp Chatbot API
SendPulse Telegram Chatbot API
SendPulse Facebook Messenger Chatbot API
SendPulse Instagram Chatbot API
SendPulse Viber Chatbot API
SendPulse TikTok Chatbot API
SendPulse LiveChat API
Where this information came from

This is an independent, third-party profile of SendPulse SMTP API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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