# Create mailing list for a web hosting package

> A new mailing list for one web hosting package - mail to its address goes to every recipient.

- Effect: Write - Changes the account. Agents ask first.
- Idempotent: no
- Stability: beta
- MCP tool: `manitu_webhosting_mail_mailinglist_create` on https://mcp.manitu.de/mcp
- REST: `POST https://api.manitu.de/v1/webhosting/mail/mailinglist/create`
- Needs: `service_webhosting`
- Page: /reference/webhosting/mail/mailinglist/create/

**Changes the account. Agents say what will happen and wait for an explicit yes before calling it.**

## MCP tool

`manitu_webhosting_mail_mailinglist_create`

### Description for the model

Creates a mailing list for a web hosting package of the manitu customer account this connection works in, by its site_id from manitu_webhosting_list, at an address of one of the package's domains that is free (check with manitu_webhosting_mail_address_list and manitu_webhosting_mail_mailinglist_list). Mail to it goes to every address in recipient_list (at most 1000), sent as the list itself. Settings not given are the customer panel's defaults: only recipients may write (policy closed), replies go to the list, subject "$SUBJECT", no public subscription, one-click unsubscribe link on. Refused with a conflict when the package allows no more lists (limit_reached) or cannot be changed now (not_configurable). Usable a few minutes later. For newsletters to many people a specialised service is the better choice (consent, GDPR). Tell the customer the address, every recipient and who may write, and ask for an explicit yes first - the recipients get every mail sent to the list.

### Arguments

- `site_id` (integer | string, required) - The site_id from manitu_webhosting_list - never guess one. (pattern `"^[1-9][0-9]*$"`; minimum `1`)
- `mail_address` (string, required) - The address of the mailing list from manitu_webhosting_mail_mailinglist_list, e.g. club@example.de. Never guess one. (minLength `2`; maxLength `254`)
- `status` (string) - active; inactive switches it off without deleting it - mail to it is dropped silently (e.g. to stop it at once). Default when created: active. (one of `"active"`, `"inactive"`)
- `description` (string | null) - The customer's description, for his own overview. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `recipient_list` (array of string) - The recipients' addresses - the whole list, it replaces the one there (to add or remove a few, use manitu_webhosting_mail_mailinglist_recipient_add/_remove). At most 1000; may be empty. Other people's addresses: they get every mail sent to the list. (maxItems `1000`)
- `subject` (string) - The subject of the mails sent; $SUBJECT stands for the subject of the mail that came in, e.g. "[Club] $SUBJECT". Default when created: "$SUBJECT". (minLength `1`; maxLength `100`)
- `reply_to` (string) - Where a reply goes: mail-list - to the list (default); sender - to the sender of the mail; fixed-address - to reply_to_address (required then). (one of `"mail-list"`, `"sender"`, `"fixed-address"`)
- `reply_to_address` (string | null) - With reply_to fixed-address: the address replies go to. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `return_path` (string | null) - Where reports about mail that could not be delivered go (Return-Path) - none: they are dropped. Best an address of the package (else SPF checks may fail, e.g. at Gmail); needed for delivery to GMX, WEB.DE and other United Internet addresses. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `message_id` (string) - new: a new Message-ID for each mail sent (recommended, default); keep: the one of the mail that came in. (one of `"new"`, `"keep"`)
- `header` (string | null) - Text put above every mail sent - plain text mails only, not HTML, signed or encrypted ones. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `footer` (string | null) - Text put below every mail sent - plain text mails only. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `policy` (string) - Who may write to the list: closed - its recipients only (default); public - anybody. (one of `"closed"`, `"public"`)
- `non_member_forward_to` (string | null) - With policy closed: where mail from others than the recipients goes (e.g. the customer's own address, to send it on by hand) - none: it is dropped. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `public_subscription` (boolean) - true: anybody may subscribe and unsubscribe on a web page, with a confirmation by mail (double opt-in) - the answer has the link (subscription_link). false (default): only the customer changes the recipients. Switched off and on again, the link is a new one.
- `subscription_page_prolog` (string | null) - Text shown on the subscription page - plain text, no HTML; line breaks kept. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `unsubscribe_link_rfc8058` (boolean) - Every mail carries a one-click unsubscribe link (RFC 8058) - large mail providers (e.g. Gmail) require it. Default true; switch off only in exceptional cases.
- `send_delay_seconds` (number) - The delay between two mails sent, in seconds - more only if receiving servers complain. Default 0.5; recipients times delay over 300 seconds: the default applies. (minimum `0.5`; maximum `50`)

### Example

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "manitu_webhosting_mail_mailinglist_create",
    "arguments": {
      "site_id": 12345,
      "mail_address": "info@example.com"
    }
  }
}
```

## REST

`POST https://api.manitu.de/v1/webhosting/mail/mailinglist/create`

### Authentication

One of `X-API-Key`, `Authorization: Bearer …` - never more than one in a request.

### Request body

JSON; unknown fields are refused.

- `site_id` (integer | string, required) - The site_id from manitu_webhosting_list - never guess one. (pattern `"^[1-9][0-9]*$"`; minimum `1`)
- `mail_address` (string, required) - The address of the mailing list from manitu_webhosting_mail_mailinglist_list, e.g. club@example.de. Never guess one. (minLength `2`; maxLength `254`)
- `status` (string) - active; inactive switches it off without deleting it - mail to it is dropped silently (e.g. to stop it at once). Default when created: active. (one of `"active"`, `"inactive"`)
- `description` (string | null) - The customer's description, for his own overview. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `recipient_list` (array of string) - The recipients' addresses - the whole list, it replaces the one there (to add or remove a few, use manitu_webhosting_mail_mailinglist_recipient_add/_remove). At most 1000; may be empty. Other people's addresses: they get every mail sent to the list. (maxItems `1000`)
- `subject` (string) - The subject of the mails sent; $SUBJECT stands for the subject of the mail that came in, e.g. "[Club] $SUBJECT". Default when created: "$SUBJECT". (minLength `1`; maxLength `100`)
- `reply_to` (string) - Where a reply goes: mail-list - to the list (default); sender - to the sender of the mail; fixed-address - to reply_to_address (required then). (one of `"mail-list"`, `"sender"`, `"fixed-address"`)
- `reply_to_address` (string | null) - With reply_to fixed-address: the address replies go to. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `return_path` (string | null) - Where reports about mail that could not be delivered go (Return-Path) - none: they are dropped. Best an address of the package (else SPF checks may fail, e.g. at Gmail); needed for delivery to GMX, WEB.DE and other United Internet addresses. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `message_id` (string) - new: a new Message-ID for each mail sent (recommended, default); keep: the one of the mail that came in. (one of `"new"`, `"keep"`)
- `header` (string | null) - Text put above every mail sent - plain text mails only, not HTML, signed or encrypted ones. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `footer` (string | null) - Text put below every mail sent - plain text mails only. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `policy` (string) - Who may write to the list: closed - its recipients only (default); public - anybody. (one of `"closed"`, `"public"`)
- `non_member_forward_to` (string | null) - With policy closed: where mail from others than the recipients goes (e.g. the customer's own address, to send it on by hand) - none: it is dropped. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `254`)
- `public_subscription` (boolean) - true: anybody may subscribe and unsubscribe on a web page, with a confirmation by mail (double opt-in) - the answer has the link (subscription_link). false (default): only the customer changes the recipients. Switched off and on again, the link is a new one.
- `subscription_page_prolog` (string | null) - Text shown on the subscription page - plain text, no HTML; line breaks kept. Left out: unchanged (set) or none (create); null or empty: none. (maxLength `1024`)
- `unsubscribe_link_rfc8058` (boolean) - Every mail carries a one-click unsubscribe link (RFC 8058) - large mail providers (e.g. Gmail) require it. Default true; switch off only in exceptional cases.
- `send_delay_seconds` (number) - The delay between two mails sent, in seconds - more only if receiving servers complain. Default 0.5; recipients times delay over 300 seconds: the default applies. (minimum `0.5`; maximum `50`)

### Response

In `data`; the rest of the body as on every call.

- `mail_address` (string, required) - The address of the list - mail to it goes to every recipient. Domain in Unicode.
- `mail_address_ascii` (string, required) - The same address as the mail servers have it (an internationalized domain as xn--...).
- `status` (string, required) - active; inactive: mail to it is neither sent on nor refused - it is dropped silently. (one of `"active"`, `"inactive"`)
- `description` (string | null, required) - What the customer wrote about it (his description), null if nothing - not its name or user name.
- `created_at` (string | null, required) - (format `date-time`)
- `subject` (string, required) - The subject of the mails sent - $SUBJECT stands for the subject of the mail that came in, e.g. "[Club] $SUBJECT".
- `reply_to` (string, required) - Where a reply goes: mail-list - to the list; sender - to the sender of the mail; fixed-address - to reply_to_address. (one of `"mail-list"`, `"sender"`, `"fixed-address"`)
- `reply_to_address` (string | null, required) - With reply_to fixed-address: the address replies go to.
- `return_path` (string | null, required) - Where reports about mail that could not be delivered go (Return-Path); null: they are dropped.
- `message_id` (string, required) - new: a new Message-ID for each mail sent (recommended); keep: the one of the mail that came in. (one of `"new"`, `"keep"`)
- `header` (string | null, required) - Text put above every mail sent - plain text mails only.
- `footer` (string | null, required) - Text put below every mail sent - plain text mails only.
- `policy` (string, required) - Who may write to the list: closed - its recipients only; public - anybody. (one of `"closed"`, `"public"`)
- `non_member_forward_to` (string | null, required) - With policy closed: where mail from others than the recipients goes; null: it is dropped.
- `public_subscription` (boolean, required) - Anybody may subscribe and unsubscribe on a web page, with a confirmation by mail (double opt-in); false: only the customer changes the recipients.
- `subscription_page_prolog` (string | null, required) - Text shown on the subscription page - plain text, line breaks kept.
- `subscription_link` (string | null, required) - The link to the subscription page, to publish - null while public_subscription is off. A new one when subscribing is switched off and on again.
- `unsubscribe_link_rfc8058` (boolean, required) - Every mail carries a one-click unsubscribe link (RFC 8058) - large mail providers (e.g. Gmail) require it; switch off only in exceptional cases.
- `send_delay_seconds` (number, required) - The delay between two mails sent, 0.5 to 50 seconds - more if receiving servers complain about too many mails at once. Recipients times delay over 300 seconds: the default (0.5) applies.
- `recipient_count` (integer, required) - How many recipients the list has, at most 1000.
- `recipient_list` (array of string | null, required) - The recipients' addresses, sorted - only when asked for (with_recipient_list), else null. Other people's data: show them only to the customer.

### Statuses

- `200` Success.
- `400` The request does not match the declared input schema.
- `401` No credential was presented, or it was not recognised.
- `403` The credential is not permitted to use this operation.
- `500` The server failed. Nothing about the request was wrong. Whether a change took effect is not known - check before trying it again.
- `503` The channel this operation forwards through is unavailable.

### Example

```sh
curl -X POST 'https://api.manitu.de/v1/webhosting/mail/mailinglist/create' \
  -H 'X-API-Key: $API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"site_id":12345,"mail_address":"info@example.com"}'
```

## Example result

```json
{
  "mail_address": "info@example.com",
  "mail_address_ascii": "string",
  "status": "active",
  "description": "Example",
  "created_at": "2026-10-23T12:00:00+02:00",
  "subject": "string",
  "reply_to": "mail-list",
  "reply_to_address": "string",
  "return_path": "/web",
  "message_id": "new",
  "header": "string",
  "footer": "string",
  "policy": "closed",
  "non_member_forward_to": "string",
  "public_subscription": true,
  "subscription_page_prolog": "string",
  "subscription_link": "string",
  "unsubscribe_link_rfc8058": true,
  "send_delay_seconds": 1.5,
  "recipient_count": 1,
  "recipient_list": [
    "string"
  ]
}
```