--- title: "Connect MailerSend to Poplar - APIANT.ai" description: "When \"Email Is Clicked Through\" fires in MailerSend, your agent runs \"Add Email to Do Not Mail List\" in Poplar." canonical: "https://apiant.ai/connect/mailersend-to-poplar" --- # Connect MailerSend to Poplar When **Email Is Clicked Through** fires in [MailerSend](https://apiant.ai/connections/mailersend), your agent runs **Add Email to Do Not Mail List** in [Poplar](https://apiant.ai/connections/poplar). Describe the whole flow and it is built, tested on every scenario and kept running. MailerSend **11** triggers MailerSend **1** action Poplar **7** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want MailerSend and Poplar 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) MailerSend tells you what happens to each email and SMS you send, while Poplar handles printed mail, audiences and suppression lists. Connecting them means an unsubscribe, hard bounce or spam report in MailerSend can update your Poplar Do Not Mail list, and engaged readers can be added to a Poplar audience for a postcard. Example flows ## What MailerSend can start in Poplar - When **Email Is Clicked Through** in MailerSend then **Add Email to Do Not Mail List** in Poplar - When **Email Is Delivered** in MailerSend then **Add Order** in Poplar 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 MailerSend and Poplar ## Triggers and actions 11 triggers · 8 actions - Trigger **Email Is Clicked Through** Triggers when the recipient clicks on a link. - Trigger **Email Is Delivered** Triggers when an email is delivered. - Trigger **Email Is Hard Bounced** Triggers when an email is hard bounced. - Trigger **Email Is Opened** Triggers when an email is opened. - Trigger **Email Is Reported as Spam** Triggers when an email is reported as spam. - Trigger **Email Is Sent** Triggers when an email is sent. - Trigger **Email Is Soft Bounced** Triggers when an email is soft bounced. - Trigger **Recipient Has Unsubscribed** Triggers when a recipient unsubscribes from your mailing activity. - Trigger **SMS Delivery Failed** Triggers when SMS failed to deliver. - Trigger **SMS Is Delivered** Triggers when SMS is delivered. - Trigger **SMS Is Sent** Triggers when SMS is sent. - Action **Send an Email** Send an email via your MailerSend account. - Action **Add Address to Do Not Mail List** Adds a postal address to your Do Not Mail suppression list. - Action **Add Audience Member** Adds a user to an Audience - Action **Add Data Subject Request** Submit a CPRA data subject access or erasure request for one or more subject identities. - Action **Add Email to Do Not Mail List** Adds an Email Address to your Do Not Mail suppression list. - Action **Add Order** Report a new customer transaction/order for attribution reporting and existing-customer suppression. - Action **Add User ID to Do Not Mail List** Adds a User ID to your Do Not Mail suppression list. - Action **List Audiences** Return the list of audiences (suppression/mailing lists) attached to the organization. ## Each app on its own - [ **MailerSend** MailerSend is a powerful transactional email system built for developers but designed so non-tech teams can...](https://apiant.ai/connections/mailersend) - [ **Poplar** Poplar is a web platform for programmatically print and mail.](https://apiant.ai/connections/poplar) Reviews ## What our customers say ## More from MailerSend - [ **MailerSend to Giphy** Giphy is the best way to search, share, and discover GIFs on the Internet.](https://apiant.ai/connect/mailersend-to-giphy) - [ **MailerSend to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailersend-to-salesforce) - [ **MailerSend to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailersend-to-slack) - [ **MailerSend to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailersend-to-stripe) - [ **MailerSend to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailersend-to-shopify) - [ **MailerSend to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailersend-to-quickbooks-online) ## More into Poplar - [ **HubSpot to Poplar** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poplar) - [ **Salesforce to Poplar** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-poplar) - [ **Slack to Poplar** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-poplar) - [ **Google Sheets to Poplar** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-poplar) - [ **Gmail to Poplar** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poplar) - [ **Google Calendar to Poplar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poplar) Questions ## MailerSend and Poplar, answered ### ### Can a MailerSend unsubscribe stop someone getting printed mail from Poplar? Yes. The unsubscribe trigger in MailerSend can add that email address, and the postal address or user ID if you hold one, to your Poplar Do Not Mail suppression list, and the agent tests each scenario before it goes live. ### ### Poplar has no triggers, so can anything start in Poplar? No, Poplar only offers actions here, so every run starts from a MailerSend event such as a delivery, click, bounce or spam report. Poplar then does the work, like adding an audience member, reporting an order or updating a suppression list. ### ### What can start an automation from MailerSend? Any of MailerSend's 11 triggers in the catalog, including Email Is Clicked Through, Email Is Delivered, Email Is Hard Bounced and Email Is Reported as Spam. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Poplar when something happens in MailerSend? Any of Poplar's 7 actions, including Add Audience Member, Add Email to Do Not Mail List, Add Order and Add User ID to Do Not Mail List. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Poplar to MailerSend? Poplar has no triggers in the catalog today, so automations start in MailerSend. If you need the other direction, ask: your agent reads Poplar's API documentation and adds it. ### ### Do I have to build a connector for MailerSend or Poplar? 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 MailerSend and Poplar 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.