Integrations: connect SMTP Senpai to your tools
Apps, APIs and step-by-step guides that work today with SMTP Senpai and MailSenpai. Pick the one that matches the software you already use.
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- Ready to use today
- One account, one key
- 14-day free trial
Apps and AI assistants
Make
The SMTP Senpai app for Make: send an email, watch email events, add, remove and search suppressions, or make any API call. Install it from the invitation link.
OpenMCP server for AI assistants
Connect MailSenpai to Claude, ChatGPT, Cursor and other MCP clients: lists, campaigns, templates and the DNS check, in plain language.
OpenAPIs
SMTP Senpai REST API
Send emails, read the log of events, manage suppressions and webhooks with one key. OpenAPI specification included.
OpenCompatible APIs (14 formats)
Already on SendGrid, Mailgun, Postmark, Amazon SES, Resend or 9 more? Change the base URL and the key, keep your code.
OpenFree DNS check API
One GET request returns whether a domain’s SPF, DKIM, DMARC and MX records are in order. No key.
OpenSMTP guides
WordPress and WooCommerce
Any SMTP plugin with four details: server, port, security, credentials.
OpenLaravel
Six lines in your .env file.
OpenNode.js with Nodemailer
MailSenpai is a built-in Nodemailer service.
OpenDjango
The EMAIL_ settings in settings.py.
OpenStrapi
The nodemailer email provider in one file.
Openn8n
SMTP credentials for the Send Email node.
OpenSupabase
Custom SMTP for Supabase Auth emails.
OpenFrequently asked questions
Which integration should I choose?
If your software already sends through one of the 14 supported APIs, use the compatible API and change only the base URL and the key. For no-code automations use Make. For everything else, SMTP works with any program that lets you set a server, port, username and password.
Is there a WordPress plugin?
Use any SMTP plugin, such as WP Mail SMTP, FluentSMTP or Post SMTP, with the four details in the WordPress guide.
Do I need a developer?
Not for Make, WordPress and n8n: they are set up from their own screens. The APIs and the framework guides are for whoever maintains your code.
Connect your tools to SMTP Senpai
A 14-day trial: connect the software you already use, send your real emails and check the log line by line. Then decide.
Make is a trademark of Celonis, Inc.; Claude, ChatGPT, Cursor, WordPress, WooCommerce, Laravel, Node.js, Django, Strapi, n8n and Supabase are trademarks of their respective owners. They are named only to describe compatibility. MailSenpai is not affiliated with them.