---
title: "Connect OpnForm to mails.so - APIANT.ai"
description: "When \"New Submission\" fires in OpnForm, your agent runs \"Bulk validate email addresses\" in mails.so."
canonical: "https://apiant.ai/connect/opnform-to-mails-so"
---

# Connect OpnForm to mails.so

When **New Submission** fires in [OpnForm](https://apiant.ai/connections/opnform), your agent runs **Bulk validate email addresses** in [mails.so](https://apiant.ai/connections/mails-so). Describe the whole flow and it is built, tested on every scenario and kept running.

OpnForm **1** trigger OpnForm **9** actions mails.so **2** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want OpnForm and mails.so to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

### Set it up in your client

### Claude Code

Run this in the directory you want to work in.

`claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai`

Start Claude Code there, approve the server, and sign in in the browser page it opens.

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

Example flows

## What OpnForm can start in mails.so

- When **New Submission** in OpnForm then **Bulk validate email addresses** in mails.so
- When **New Submission** in OpnForm then **Validate Email Address** in mails.so

Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.

Everything your agent can do with OpnForm and mails.so

## Triggers and actions 1 trigger · 11 actions

- Trigger

**New Submission**

Fires instantly each time a new submission is received on the chosen OpnForm form.

- Action

**Add Form**

Creates a new form in an OpnForm workspace.

- Action

**Add Submission**

Submits data to a form programmatically.

- Action

**Delete Form**

Deletes a form from OpnForm.

- Action

**Delete Submission**

Deletes a submission from an OpnForm form.

- Action

**Get Form**

Retrieves a single form by id.

- Action

**List Forms**

Lists the forms in an OpnForm workspace (summary records without form fields; use Get Form for the full form).

- Action

**List Submissions**

Lists submissions for a form.

- Action

**Update Form**

Updates an existing form's fields/settings.

- Action

**Update Submission**

Updates an existing form submission's data.

- Action

**Bulk validate email addresses**

Submits a list of email addresses to mails.so for asynchronous bulk validation and returns the batch job.

- Action

**Validate Email Address**

Validates a single email address and returns its deliverability result, score and the individual checks.

## Each app on its own

- [ **OpnForm** Integrate OpnForm to automate workflows! Seamlessly connect your forms with 2000+ apps to boost productivity...](https://apiant.ai/connections/opnform)
- [ **mails.so** mails.so is an email validation service. It checks if an address is valid, if it exists, or if it can...](https://apiant.ai/connections/mails-so)

Reviews

## What our customers say

## More from OpnForm

- [ **OpnForm to mail.gw** mail.gw is a disposable temporary-email service with a REST API.](https://apiant.ai/connect/opnform-to-mail-gw)
- [ **OpnForm to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/opnform-to-salesforce)
- [ **OpnForm to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/opnform-to-slack)
- [ **OpnForm to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/opnform-to-stripe)
- [ **OpnForm to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/opnform-to-shopify)
- [ **OpnForm to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/opnform-to-quickbooks-online)

## More into mails.so

- [ **AWeber to mails.so** AWeber provides professional email marketing software and services.](https://apiant.ai/connect/aweber-to-mails-so)
- [ **HubSpot to mails.so** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mails-so)
- [ **Salesforce to mails.so** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mails-so)
- [ **Slack to mails.so** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mails-so)
- [ **Google Sheets to mails.so** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-mails-so)
- [ **Gmail to mails.so** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mails-so)

Questions

## OpnForm and mails.so, answered

###

### What can start an automation from OpnForm?

Any of OpnForm's 1 trigger in the catalog, including New Submission. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in mails.so when something happens in OpnForm?

Any of mails.so's 2 actions, including Bulk validate email addresses and Validate Email Address. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from mails.so to OpnForm?

mails.so has no triggers in the catalog today, so automations start in OpnForm. If you need the other direction, ask: your agent reads mails.so's API documentation and adds it.

###

### Do I have to build a connector for OpnForm or mails.so?

No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.

###

### Can my AI client use OpnForm and mails.so without building an automation?

Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.

###

### What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

###

### Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.
