--- title: "SMTP2GO MCP server for AI agents - actionlake" description: "Give Claude 69 SMTP2GO actions through one MCP server: sender domains, API keys, stats. Your agent never holds the credential. 100,000 calls a month free." canonical: https://actionlake.com/connectors/smtp2go updated: 2026-10-23 --- Connectors · MSP & PSA # SMTP2GO MCP server for AI agents. actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to SMTP2GO and the rest of your systems. It gives your agent 69 SMTP2GO actions (28 reads, 29 writes and 12 that wait for a confirmation) and holds the SMTP2GO credential itself, so the agent never does. It paces SMTP2GO's limits and records every call. [Connect SMTP2GO free](https://actionlake.com/console?start=sandbox) [See pricing](https://actionlake.com/pricing) 100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you. `claude mcp add --transport http actionlake https://connect.actionlake.com/mcp` the first call ``` do { action: "smtp2go.sender_domains.list", intent: "check which SMTP2GO account is connected" } # View sender domains · read · 1 upstream call ``` - 69 actions in one signed file - 28 read look, never change - 29 write create and update - 12 wait for a yes destructive, confirmed first Set up ## Connect SMTP2GO in three steps. 1. 01 ### Add actionlake to Claude. Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us. `https://connect.actionlake.com/mcp` 2. 02 ### Connect SMTP2GO. API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key. - `api_key` SMTP2GO API key (api-...) - `host` Where your SMTP2GO lives: your host ``` account { op: "connections.requirements", service: "smtp2go" } # free: exactly what to paste, and what is found for you ``` 3. 03 ### Make the first call. Check before a write. Ask in plain words; Claude picks the action. Before anything changes, `check` validates the call and prices it, for free. ``` do { action: "smtp2go.sender_domains.list" } # view sender domains · read · 1 upstream call check { action: "smtp2go.emails.send", input: { … } } # free: inputs, permissions, cost and confirmations, nothing sent ``` SMTP2GO at a glance **Sign-in** API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. **You provide** `api_key` **Setup fields** `host` **Limits we pace to** 300 calls a minute, per connection **API covered** SMTP2GO API v3.0.4, at your SMTP2GO instance's API base URL, which you enter when connecting (path /v3) **Built from** SMTP2GO's documentation, read 23 October 2026[developers.smtp2go.com](https://developers.smtp2go.com/llms.txt) **Service file** Version 1.0.0, signed (Ed25519) **Cached reads** 25 of 28 reads, for up to 5 minutes; a write clears what it affects **Shared entities** 3, so ask can line SMTP2GO up with your other systems **Data** Processed and stored in Sydney, Australia. No US region yet Capabilities ## What an AI agent can do in SMTP2GO. 69 actions in 18 areas. Every one carries its effect, so a key can allow the reads and hold the rest. - **28** read look, never change - **29** write create and update - **12** destructive wait for a confirmation 1. ### Sender domains 7 1 read · 5 write · 1 destructive View sender domains · Add a sender domain · Remove a sender domain · Verify a sender domain 2. ### API keys 6 2 read · 3 write · 1 destructive Add a new API key · View API Keys · Remove an API key · Edit an API key 3. ### Stats 6 6 read · 0 write · 0 destructive Email bounces · Email cycle · Email history · Email spam 4. ### SMTP users 5 1 read · 3 write · 1 destructive Add an SMTP user · View SMTP users · Edit SMTP user details · Remove an SMTP user 5. ### Subaccounts 5 1 read · 3 write · 1 destructive Add a subaccount · View subaccounts · Reopen a closed subaccount · Update a subaccount 6. ### Templates 5 2 read · 2 write · 1 destructive Add an email template · View template details · Update an email template · Remove an email template 7. ### Allowed recipients 4 1 read · 2 write · 1 destructive Add allowed recipients · View allowed recipients · Update allowed recipients · Remove allowed recipients 8. ### Allowed senders 4 1 read · 2 write · 1 destructive Add allowed senders · View allowed senders · Update allowed senders · Remove allowed senders **10 more areas · 27 actions** - Emails **4** - SMS **4** - Webhooks **4** - Ip auth **3** - Single sender emails **3** - Suppressions **3** - Archive **2** - Scheduled emails **2** - Activity **1** - Dedicated ips **1** Top actions ## The SMTP2GO API, shaped for agents. The ids your agent types, what each does, and the one name it shares with other systems. 24 of SMTP2GO's 24 action names are shared with at least one other connector, so an agent learns them once. | Action | What it does | Effect | Same name in | | --- | --- | --- | --- | | `smtp2go.sender_domains.list` View sender domains | View sender domains. | read | `comm.sending_domain.list` 18 connectors | | `smtp2go.emails.send` Send a standard email | Send a standard email. | write | `comm.email.send` 32 connectors | | `smtp2go.emails.search` View and search sent emails | View and search sent emails. | read | `comm.email.search` 5 connectors | | `smtp2go.activity.search` Search activity | Search activity. | read | `comm.delivery_event.search` 4 connectors | | `smtp2go.sender_domains.create` Add a sender domain | Add a sender domain. | write | `comm.sending_domain.create` 15 connectors | | `smtp2go.sender_domains.delete` Remove a sender domain | Remove a sender domain. | destructive | `comm.sending_domain.delete` 14 connectors | | `smtp2go.suppressions.list` View suppressions | View suppressions. | read | `comm.suppression.list` 17 connectors | | `smtp2go.suppressions.add` Add a suppression | Add a suppression. | write | `comm.suppression.create` 14 connectors | | `smtp2go.templates.create` Add an email template | Add an email template. | write | `comm.email_template.create` 34 connectors | | `smtp2go.sms.send` Send SMS | Send SMS. | write | `comm.sms.send` 26 connectors | | `smtp2go.sms.list_sent` View sent SMS | View sent SMS. | read | `comm.sms.list` 19 connectors | | `smtp2go.webhooks.create` Add a new Webhook | Add a new Webhook. | write | `automation.webhook.create` 209 connectors | Try it ## Prompts to paste into Claude. Each one names the SMTP2GO actions it will call, so you know what it reads and what it changes before you send it. 1. Read read View sender domains in SMTP2GO and tell me what stands out. calls `smtp2go.sender_domains.list` 2. Write write Send a standard email in SMTP2GO. Show me exactly what you will send before you save it. calls `smtp2go.emails.send` Governance for SMTP2GO ## Destructive actions wait for a yes. 12 SMTP2GO actions are destructive. These are all of them: - Remove a sender domain `smtp2go.sender_domains.delete` - Remove a suppression `smtp2go.suppressions.remove` - Remove an email template `smtp2go.templates.delete` - Remove a specified Webhook `smtp2go.webhooks.delete` - Remove an API key `smtp2go.api_keys.delete` - Remove an IP Auth entry `smtp2go.ip_auth.delete` - Remove an SMTP user `smtp2go.smtp_users.delete` - Close a subaccount `smtp2go.subaccounts.close` - Remove allowed senders `smtp2go.allowed_senders.remove` - Remove a scheduled email `smtp2go.scheduled_emails.delete` - Remove allowed recipients `smtp2go.allowed_recipients.remove` - Remove a single sender email `smtp2go.single_sender_emails.delete` A destructive action runs only with `confirm: true`. Under the `human` policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after. do smtp2go.sender_domains.delete confirm_policy: **human** Remove a sender domain? **intent:** the user asked me to remove a sender domain run suspended · waiting for a named person · key _smtp2go-agent_ cannot confirm itself In the console, or from an emailed signed link. a key for this connector ``` account { op: "keys.create", name: "smtp2go-agent", allowed_actions: ["smtp2go.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "smtp2go.sender_domains.delete", approver: "lead@example.com" }, { match: "smtp2go.suppressions.remove", approver: "lead@example.com" }, { match: "smtp2go.templates.delete", approver: "lead@example.com" } ] } ``` Illustrative. Scoped to SMTP2GO only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person. Cost ## What SMTP2GO costs on actionlake. Every SMTP2GO action is one upstream call, the only thing actionlake bills. Searching, `check`, `cost`, `account` and any call SMTP2GO refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000. - 1 upstream call per action all 69 SMTP2GO actions - 69 actions page each page of a long list is one call - 25 reads can be cached a cache hit costs nothing - 100,000 calls a month, free paid plans from US$49 a month for 250,000 [See pricing](https://actionlake.com/pricing) Action index ## Every SMTP2GO action. 69 actions by area: the id your agent calls, what it does, and its effect. **Sender domains 7** - `smtp2go.sender_domains.create` Add a sender domain write - `smtp2go.sender_domains.delete` Remove a sender domain destructive - `smtp2go.sender_domains.edit_return_path` Edit the return-path subdomain write - `smtp2go.sender_domains.edit_subaccount_access` Edit subaccount access write - `smtp2go.sender_domains.edit_tracking` Edit the tracking subdomain write - `smtp2go.sender_domains.list` View sender domains read - `smtp2go.sender_domains.verify` Verify a sender domain write **API keys 6** - `smtp2go.api_keys.create` Add a new API key write - `smtp2go.api_keys.delete` Remove an API key destructive - `smtp2go.api_keys.list` View API Keys read - `smtp2go.api_keys.patch` Patch an API key write - `smtp2go.api_keys.permissions` View Permissions read - `smtp2go.api_keys.update` Edit an API key write **Stats 6** - `smtp2go.stats.email_bounces` Email bounces read - `smtp2go.stats.email_cycle` Email cycle read - `smtp2go.stats.email_history` Email history read - `smtp2go.stats.email_spam` Email spam read - `smtp2go.stats.email_summary` Email summary read - `smtp2go.stats.email_unsubscribes` Email unsubscribes read **SMTP users 5** - `smtp2go.smtp_users.create` Add an SMTP user write - `smtp2go.smtp_users.delete` Remove an SMTP user destructive - `smtp2go.smtp_users.list` View SMTP users read - `smtp2go.smtp_users.patch` Patch an SMTP user write - `smtp2go.smtp_users.update` Edit SMTP user details write **Subaccounts 5** - `smtp2go.subaccounts.close` Close a subaccount destructive - `smtp2go.subaccounts.create` Add a subaccount write - `smtp2go.subaccounts.reopen` Reopen a closed subaccount write - `smtp2go.subaccounts.search` View subaccounts read - `smtp2go.subaccounts.update` Update a subaccount write **Templates 5** - `smtp2go.templates.create` Add an email template write - `smtp2go.templates.delete` Remove an email template destructive - `smtp2go.templates.get` View template details read - `smtp2go.templates.search` View email templates read - `smtp2go.templates.update` Update an email template write **Allowed recipients 4** - `smtp2go.allowed_recipients.add` Add allowed recipients write - `smtp2go.allowed_recipients.get` View allowed recipients read - `smtp2go.allowed_recipients.remove` Remove allowed recipients destructive - `smtp2go.allowed_recipients.update` Update allowed recipients write **Allowed senders 4** - `smtp2go.allowed_senders.add` Add allowed senders write - `smtp2go.allowed_senders.get` View allowed senders read - `smtp2go.allowed_senders.remove` Remove allowed senders destructive - `smtp2go.allowed_senders.update` Update allowed senders write **Emails 4** - `smtp2go.emails.search` View and search sent emails read - `smtp2go.emails.send` Send a standard email write - `smtp2go.emails.send_batch` Send a batch of emails write - `smtp2go.emails.send_mime` Send an MIME email write **SMS 4** - `smtp2go.sms.list_received` View received SMS read - `smtp2go.sms.list_sent` View sent SMS read - `smtp2go.sms.send` Send SMS write - `smtp2go.sms.summary` SMS Summary read **Webhooks 4** - `smtp2go.webhooks.create` Add a new Webhook write - `smtp2go.webhooks.delete` Remove a specified Webhook destructive - `smtp2go.webhooks.list` View Webhooks read - `smtp2go.webhooks.update` Edit a specified Webhook write **Ip auth 3** - `smtp2go.ip_auth.delete` Remove an IP Auth entry destructive - `smtp2go.ip_auth.list` View IP Auth read - `smtp2go.ip_auth.patch` Patch an IP Auth write **Single sender emails 3** - `smtp2go.single_sender_emails.create` Add a single sender email write - `smtp2go.single_sender_emails.delete` Remove a single sender email destructive - `smtp2go.single_sender_emails.list` View single sender emails read **Suppressions 3** - `smtp2go.suppressions.add` Add a suppression write - `smtp2go.suppressions.list` View suppressions read - `smtp2go.suppressions.remove` Remove a suppression destructive **Archive 2** - `smtp2go.archive.get_email` View an archived email read - `smtp2go.archive.search` Search archived content read **Scheduled emails 2** - `smtp2go.scheduled_emails.delete` Remove a scheduled email destructive - `smtp2go.scheduled_emails.search` Search schedule emails read **Activity 1** - `smtp2go.activity.search` Search activity read **Dedicated ips 1** - `smtp2go.dedicated_ips.list` View Dedicated IP Addresses read Questions ## The SMTP2GO MCP server, answered. **Is there an SMTP2GO MCP server for Claude?** Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 69 SMTP2GO actions across sender domains, API keys, stats and SMTP users, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by SMTP2GO. **What do I need to connect SMTP2GO?** SMTP2GO API key (api-...). Plus your host. The free call account { op: "connections.requirements", service: "smtp2go" } lists exactly what to paste. **Can an AI agent delete or change things in SMTP2GO?** Only if its key allows it, and only with an explicit confirmation. 12 SMTP2GO actions are destructive, including remove a sender domain, remove a suppression and remove an email template. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it. **Will an AI agent use up my SMTP2GO API limit?** actionlake paces every call to the limits in the SMTP2GO service file: 300 calls a minute per connection. Repeated reads are answered from cache (25 SMTP2GO actions can be), which never reaches SMTP2GO. **What does an SMTP2GO action cost?** One upstream call, the only unit actionlake bills. A list that pages bills one call per page (69 SMTP2GO actions page). Cache hits, searches, dry runs and calls SMTP2GO refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000. **Which SMTP2GO API does it cover?** The SMTP2GO API v3.0.4 at your SMTP2GO instance's API base URL, which you enter when connecting (path /v3). It is built from SMTP2GO's documentation as read on 23 October 2026. 69 actions in 18 areas, each one in the signed service file (version 1.0.0). **Does actionlake keep my SMTP2GO data, and where?** actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your SMTP2GO credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models. **Which AI clients can use it?** Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names. ## More connectors like SMTP2GO Shares the most action names with - [Automox 8](https://actionlake.com/connectors/automox) - [Tailscale 8](https://actionlake.com/connectors/tailscale) - [Liongard 7](https://actionlake.com/connectors/liongard) - [EasyDMARC 6](https://actionlake.com/connectors/easydmarc) - [Cisco Umbrella 4](https://actionlake.com/connectors/cisco-umbrella) - [Blumira 4](https://actionlake.com/connectors/blumira) Joins with, on shared entities - [MailerSend 3](https://actionlake.com/connectors/mailersend) - [Customer.io 2](https://actionlake.com/connectors/customer-io) - [Sinch Mailjet 2](https://actionlake.com/connectors/sinch-mailjet) - [SparkPost 2](https://actionlake.com/connectors/sparkpost) - [Mailtrap 2](https://actionlake.com/connectors/mailtrap) - [Postmark 2](https://actionlake.com/connectors/postmark) Browse - [All MSP & PSA connectors](https://actionlake.com/connectors/category/msp-and-psa) - [All connectors](https://actionlake.com/connectors) - [How actionlake compares](https://actionlake.com/compare) actionlake is independent. It is not made or endorsed by SMTP2GO; the name is the vendor's own. Counts are from the SMTP2GO service file, version 1.0.0. ## Give your agent SMTP2GO today. [Connect SMTP2GO free](https://actionlake.com/console?start=sandbox) [See pricing](https://actionlake.com/pricing) Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free. --- Source: https://actionlake.com/connectors/smtp2go More: https://actionlake.com/llms.txt