# How to send marketing email from ChatGPT

> To send marketing email from ChatGPT, add an email marketing MCP server such as Tellnod under Plugins → Add custom MCP server, then mention it with @ in a chat to draft, preview and test the campaign, and approve the send on the confirmation card.

Canonical: https://tellnod.com/guides/send-marketing-email-from-chatgpt  
Last updated: 2026-10-15  
Author: Tellnod team

## Steps

1. **Add Tellnod as a custom MCP server.** In ChatGPT, open Plugins, select +, then Add custom MCP server. Name it Tellnod and paste the connector address from the [connect page](https://tellnod.com/connect) under Connection [S1].
2. **Create it as a plugin and sign in.** Confirm the sign-in settings, select Create as a plugin, then sign in with Google when asked.
3. **Start a chat with @Tellnod.** Type @ and choose Tellnod, then set up your brand from your website and import your contacts.
4. **Draft and preview.** Describe the campaign and the audience. Review the preview on desktop and mobile and ask for changes in plain words.
5. **Test, then approve.** Send yourself a test. ChatGPT prepares the send; you approve it on the confirmation card. If the chat cannot show cards, Tellnod gives you a link to a confirmation page on tellnod.com instead.

## What you need

- A ChatGPT plan and workspace that allow custom MCP servers. Account and workspace policies apply [S1].
- A domain you can add DNS records to, for [SPF](https://tellnod.com/glossary#spf), [DKIM](https://tellnod.com/glossary#dkim) and [DMARC](https://tellnod.com/glossary#dmarc).
- Contacts who opted in to your emails.

## Adding the MCP server, step by step

1. Open ChatGPT and go to Plugins.
2. Select +, then Add custom MCP server.
3. Name it Tellnod and paste the connector address under Connection.
4. Confirm the sign-in settings, then select Create as a plugin.
5. Start a new chat, type @ and choose Tellnod.

## Why the last step is yours

Marketing email cannot be unsent. Tellnod splits sending into two steps: the assistant can prepare a send, which freezes the audience and shows the card, but the confirm step is only reachable from the card's button or the web confirmation page. Each confirmation is single-use and expires after 10 minutes. Read more on [security](https://tellnod.com/security).

## Prompts to try

- @Tellnod Set up my brand from myshop.com
- @Tellnod Import my customers from this CSV. Only mark people as subscribed if the file says they opted in.
- @Tellnod Email customers who haven't ordered in 60 days about the autumn collection, with 15% off until Sunday.
- @Tellnod Make the headline shorter and show it on mobile.
- @Tellnod Send a test to me, then schedule it for Thursday at 9 am.

## FAQ

### Can ChatGPT send email on its own?

Not without an app or MCP server that sends email. With Tellnod, ChatGPT can prepare a campaign, and you approve it before anything is sent.

### Is this an official ChatGPT app?

No. Tellnod is an independent product you add as a custom MCP server. It is not affiliated with or endorsed by OpenAI.

### Does it work in Claude too?

Yes. See [how to send an email campaign from Claude](https://tellnod.com/guides/send-email-campaign-from-claude).

## Sources

- [S1] OpenAI Apps SDK: Connect and test your plugin: <https://developers.openai.com/apps-sdk/deploy/connect-chatgpt> (checked 2026-10-15)