--- title: "Connect MailSlurp Email Plugin and PostStack - APIANT.ai" description: "When \"New Attachment\" fires in MailSlurp Email Plugin, your agent runs \"Add a contact\" in PostStack." canonical: "https://apiant.ai/connect/mailslurp-email-plugin-to-poststack" --- # Connect MailSlurp Email Plugin and PostStack When **New Attachment** fires in [MailSlurp Email Plugin](https://apiant.ai/connections/mailslurp-email-plugin), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **List Contacts** in MailSlurp Email Plugin. Describe the whole flow and it is built, tested on every scenario and kept running. MailSlurp Email Plugin **3** triggers MailSlurp Email Plugin **5** actions PostStack **7** triggers PostStack **31** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want MailSlurp Email Plugin and PostStack 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 MailSlurp Email Plugin and PostStack can do together ### From MailSlurp Email Plugin to PostStack - When **New Attachment** in MailSlurp Email Plugin then **Add a contact** in PostStack - When **New Contact** in MailSlurp Email Plugin then **Add contacts to segment** in PostStack ### From PostStack to MailSlurp Email Plugin - When **Contact Updated (instant)** in PostStack then **List Contacts** in MailSlurp Email Plugin - When **New Contact (instant)** in PostStack then **Get email attachment** in MailSlurp Email Plugin 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 MailSlurp Email Plugin and PostStack ## Triggers and actions 10 triggers · 36 actions - Trigger **New Attachment** Triggered when a new attachment is uploaded or received in your MailSlurp account. - Trigger **New Contact** Triggered when a new contact is created in your MailSlurp address book. - Trigger **New Inbox** Triggers when a new inbox is created on your MailSlurp account. - Action **Delete Inbox** Permanently deletes a MailSlurp inbox, its email address and all of its emails. - Action **Get email attachment** Returns the contents of one attachment on an email, base64 encoded, along with its file type and size. - Action **Get Inbox** Fetches one MailSlurp inbox by id, including its email address, name and tags. An error occurs if the inbox is not found. - Action **List Contacts** Returns the contacts in your MailSlurp address book, newest or oldest first, optionally narrowed by a search term or a date range. - Action **List Inboxes** Returns the email inboxes on your MailSlurp account, with their addresses, names and tags. Returns at most 100 inboxes. - Trigger **Contact Deleted (instant)** Fires when a contact is deleted (event: contact.deleted). - Trigger **Contact Updated (instant)** Fires when a contact is updated (event: contact.updated). - Trigger **Email Bounced (instant)** Fires when an email bounces (event: email.bounced). - Trigger **Email Delivered (instant)** Fires when an email is delivered (event: email.delivered). - Trigger **New Contact (instant)** Fires when a contact is created (event: contact.created). - Trigger **New Inbound Email** Polls for newly received inbound emails. - Trigger **New Sent Email (instant)** Fires when an email is sent (event: email.sent). - Action **Add a broadcast** Create a new marketing broadcast. - Action **Add a contact** Create a new contact. - Action **Add a segment** Create a new manual contact segment. - Action **Add a template** Create a new email template. - Action **Add contacts to segment** Add contacts to an existing segment. - Action **Add suppression** Add an address to the suppression list. - Action **Cancel broadcast** Cancel an in-flight broadcast. - Action **Cancel email** Cancel a scheduled or queued email before it sends. - Action **Delete a contact** Delete a contact. - Action **Delete a template** Delete an email template. - Action **Get a contact** Fetch one contact by ID. - Action **Get a template** Fetch one email template by ID. - Action **Get broadcast** Retrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits. - Action **Get email** Fetch one sent or queued email by ID. - Action **Get email events** Get the delivery event timeline for one email. - Action **Get inbound email** Fetch one received inbound email by ID. - Action **Import contacts** Bulk-import a CSV list of contacts. - Action **List broadcasts** List marketing broadcasts. - Action **List contacts** List contacts in the account. - Action **List emails** List sent, queued, and scheduled emails. - Action **List inbound emails** List emails received via inbound parsing. - Action **List segments** List contact segments. - Action **List suppressed addresses** List addresses on the suppression list. - Action **List templates** List email templates. - Action **Send an email** Send a transactional email through PostStack. - Action **Send broadcast** Start sending a broadcast to its recipients. - Action **Send emails in batch** Send up to 100 emails in a single request. - Action **Update a contact** Update an existing contact's fields. - Action **Update a template** Update an email template, creating a new version. - Action **Update email** Reschedule a queued email's send time. - Action **Validate email address** Check whether an email address is valid and deliverable. ## Each app on its own - [ **MailSlurp Email Plugin** MailSlurp is an API to generate test email accounts for sending and receiving real emails in tests.](https://apiant.ai/connections/mailslurp-email-plugin) - [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack) Reviews ## What our customers say ## More from MailSlurp Email Plugin - [ **MailSlurp Email Plugin to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailslurp-email-plugin-to-salesforce) - [ **MailSlurp Email Plugin to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailslurp-email-plugin-to-slack) - [ **MailSlurp Email Plugin to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailslurp-email-plugin-to-stripe) - [ **MailSlurp Email Plugin to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailslurp-email-plugin-to-shopify) - [ **MailSlurp Email Plugin to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailslurp-email-plugin-to-quickbooks-online) - [ **MailSlurp Email Plugin to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/mailslurp-email-plugin-to-pipedrive) ## More into PostStack - [ **HubSpot to PostStack** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poststack) - [ **Google Sheets to PostStack** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-poststack) - [ **Gmail to PostStack** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poststack) - [ **Google Calendar to PostStack** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poststack) - [ **Google Drive to PostStack** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-poststack) - [ **Mailchimp to PostStack** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-poststack) Questions ## MailSlurp Email Plugin and PostStack, answered ### ### What can start an automation from MailSlurp Email Plugin? Any of MailSlurp Email Plugin's 3 triggers in the catalog, including New Attachment, New Contact and New Inbox. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in MailSlurp Email Plugin? Any of PostStack's 31 actions, including Send an email, Send broadcast, Send emails in batch and Update a contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from PostStack to MailSlurp Email Plugin? Yes. When something happens in PostStack, your agent can act in MailSlurp Email Plugin too. This page covers both directions: PostStack's triggers and MailSlurp Email Plugin's actions are listed here as well. ### ### Do I have to build a connector for MailSlurp Email Plugin or PostStack? 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 MailSlurp Email Plugin and PostStack 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.