FluentSMTP + MCP: let AI configure and debug WordPress email delivery

'Contact form emails are not arriving' is the support ticket every agency gets. The fix is always the same shape: a proper connection in FluentSMTP, the right sender, a test, and a look at the log. NibWP exposes FluentSMTP as typed MCP tools so an agent can do that shape on any site — detect the state, configure the connection, test it, read the log — with secrets redacted on the way out.

Across a portfolio it becomes routine: audit which sites still send through PHP mail, move them to the agency's SMTP or API provider, set a fallback, turn on logging with sensible retention, and resend anything that bounced during the change.

FluentSMTP is one of the 45+ integrations inside NibWP's WordPress MCP server — 6 typed FluentSMTP tools on top of 190+ WordPress tools. The full tool reference lives on the FluentSMTP integration page; this page is about what those tools let you do.

What AI can do in FluentSMTP

The FluentSMTP tools NibWP exposes

Every FluentSMTP capability is a typed MCP tool with a schema the AI client can read, so it calls the right thing with the right arguments instead of guessing at your database. Read tools are free to explore; write tools go through the approval flow.

• nibwp/fluentsmtp-info — Detect FluentSMTP, connections, default route and logging state.
• nibwp/fluentsmtp-connections — List, read and delete mail connections (secrets redacted).
• nibwp/fluentsmtp-configure — Set up a custom SMTP server or any API provider; set default and fallback.
• nibwp/fluentsmtp-send-test — Send a real test email and report success or the exact error.
• nibwp/fluentsmtp-logs — Read, resend, delete the email delivery log.
• nibwp/fluentsmtp-settings — Logging, retention and routing settings.

Example prompts

Plain English is the interface. These are the kinds of requests agencies run against FluentSMTP every day:

• “Set up SMTP mail.example.com port 465 SSL with sender [email protected] and make it the default.”
• “Send a test email to [email protected] and tell me exactly what happened.”
• “Show me every failed send in the last 7 days and why it failed.”
• “Resend the three failed order emails from yesterday.”
• “Turn on logging with 30-day retention.”

How it works with FluentSMTP

There is no new dashboard to learn. You describe an outcome, NibWP plans it, and you approve before anything is written.

1. Connect — install NibWP, connect Claude, Cursor, ChatGPT or any MCP client. FluentSMTP is detected automatically and its tools appear in the client.
2. Describe — describe the connection, the test or the log question. NibWP detects FluentSMTP, existing connections and logging state first, then shows the plan.
3. Approve — NibWP shows the plan: which records it will create or change, and what will stay untouched. Nothing happens until you say yes.
4. Done — it writes real FluentSMTP data through the plugin's own APIs and reports back in plain English, with every change in the audit log.

Why not just a generic AI?

A general-purpose assistant can write text about FluentSMTP; it cannot safely operate it. The difference is structure, context and control.

A generic assistant

• Tells you which settings page to open
• Cannot send a test or read a bounce reason
• Cannot see what is already configured

FluentSMTP + NibWP

• Configures SMTP and API connections through FluentSMTP
• Sends real tests and reports the exact error
• Reads, resends and prunes the delivery log

Safe by default

NibWP is built for agencies running client sites, so control and traceability come first:

• Nothing is written without your approval — you see the plan first, and you can run in draft mode.
• Every action is recorded in a full audit trail, per site and per user.
• It runs on FluentSMTP's own functions and APIs — your data stays on your server, nothing is copied to a third-party service.
• Credentials are redacted on every read; deleting connections or log entries is flagged destructive and gated separately.

Related integrations

Most sites pair FluentSMTP with other plugins NibWP already speaks: Fluent Forms + MCP, FluentCRM + MCP, Contact Form 7 + MCP, Gravity Forms + MCP, WordPress + MCP, FluentCart + MCP. All of them ship in the same plugin — see pricing for what each plan includes.