SMTP2GO

SMTP2GO SMTP Users API

SMTP user account management

GitHub OpenAPI

Operations 5

POST /users/smtp/add Add an SMTP user #
POST /users/smtp/edit Edit SMTP user details #
PATCH /users/smtp/edit Patch an SMTP user #
POST /users/smtp/remove Remove an SMTP user #
POST /users/smtp/view View SMTP users #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/smtp2go/refs/heads/main/openapi/smtp2go-smtp-users-api-openapi.yml

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OpenAPI Specification

smtp2go-smtp-users-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: SMTP2GO SMTP USERS API
  version: 3.0.4
  description: The SMTP2GO v3 REST API for sending transactional email and SMS, managing sender domains and single sender emails, SMTP users, API keys, IP allow lists and IP auth, templates, webhooks, suppressions, subaccounts, dedicated IPs, email archive, activity search and delivery statistics. Every operation is a POST (with a PATCH variant on two paths) carrying a JSON body; authentication is an API key supplied in the X-Smtp2go-Api-Key header or as an api_key field in the request body.
  contact:
    name: SMTP2GO Support
    url: https://support.smtp2go.com/
  termsOfService: https://www.smtp2go.com/terms/
  x-harvest:
    source: https://developers.smtp2go.com/mcp
    method: MCP tools/call get-endpoint, one call per path+method, assembled verbatim
    harvested: '2026-08-13'
    server_info:
      name: SMTP2GO-API-Docs
      version: 3.0.4
    note: SMTP2GO does not publish a single fetchable OpenAPI URL; the ReadMe registry path answers 429 to non-browser clients. The provider's own remote MCP server returns the authoritative OpenAPI 3.1.0 fragment for each endpoint anonymously, and those 73 fragments are merged here without modification.
servers:
- url: https://api.smtp2go.com/v3
  description: Regionless
- url: https://us-api.smtp2go.com/v3
  description: US Region
- url: https://eu-api.smtp2go.com/v3
  description: EU Region
- url: https://au-api.smtp2go.com/v3
  description: AU Region
security:
- sec0: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/smtp2go/refs/heads/main/openapi/smtp2go-smtp-users-api-openapi.yml