MillionSend

Create a segment. With a filter it selects contacts dynamically; without one it is a manual membership list fed by add_contact_to_segment.

create_segment

Create an email template: name, html, optional subject, text and alias (a stable handle, unique per team). Live immediately. A template created with html opens in the dashboard's code mode and keeps its HTML byte for byte; converting it to blocks is the user's explicit choice there. from, reply_to and variables are not supported yet; passing them is a 422.

create_template

Create a subscription topic (name, description, default_subscription, visibility). Topic ids scope sends and broadcasts.

create_topic

Create a webhook endpoint subscribed to email events. MillionSend generates its Standard Webhooks signing secret, which these tools never return; the full secret is available by rotating it in the MillionSend dashboard or from the REST API (GET /webhooks/{id}).

create_webhook

Delete a draft broadcast. Sent broadcasts cannot be deleted.

delete_broadcast

Delete a contact and its segment memberships; its emails stay in the log. erase=true also scrubs the address from email history, event payloads and API logs (GDPR/LGPD). This cannot be undone.

delete_contact

Delete a custom contact property definition.

delete_contact_property

Delete up to 1000 contacts in one call, by ids or by email addresses (exactly one of the two). Returns the contacts actually deleted; unknown ones are skipped. Emails stay in the log; erase=true also scrubs each address from email history, like delete_contact. This cannot be undone.

delete_contacts

Remove a sending domain and its SES identity. Sends from it stop immediately; this cannot be undone.

delete_domain

Delete a segment. Its contacts remain in the audience.

delete_segment

Remove one suppression by id or email address; the address can receive email again.

delete_suppression

Delete a template. Broadcasts keep their own copy of its content. This cannot be undone.

delete_template

Delete a subscription topic and the per-contact choices recorded for it.

delete_topic

Delete a webhook endpoint. Deliveries to it stop immediately.

delete_webhook

Get one broadcast: audience, content, schedule and status.

get_broadcast

Get one contact by id or email, including custom properties and global unsubscribe state.

get_contact

List every topic of the team with the contact's effective subscription (their explicit choice, else the topic's default) and whether it was explicit.

get_contact_topics

Get the team's deliverability standing over the trailing 30 days: a 0-10 headline score with band, content and outcome sub-scores, complaint and hard-bounce rates, and guardrail status. The score measures best-practice compliance and recipient outcomes for the account — it is NOT an inbox-placement probability. Per-email check results come from get_email_insights.

get_deliverability

Get one sending domain with its DNS records (DKIM, MAIL FROM, DMARC, and the Tracking CNAME once a tracking subdomain is set) and per-record status. Only the DKIM and MAIL FROM (SPF) rows gate sending. The DMARC row is recommended, and reads verified when a parent-domain policy covers the subdomain (see inherited_from and policy). Each record's live field says what public DNS answers now; detail explains a pending or failed row.

get_domain

Get one email by id: sender, recipients, subject, body, schedule and delivery status (last_event: queued, sent, delivered, bounced, complained, ...).

get_email

Get the best-practice report for one email, computed when it was sent: per-check results (id, severity, pass/fail, points deducted) and a 0-10 score. The score measures compliance with sending best practices — it is NOT an inbox-placement probability. Each failing check describes what lowered the score.

get_email_insights

Get one segment: its name and filter, or manual membership when it has no filter.

get_segment

Get one suppression by id or email address: its origin and the email that caused it.

get_suppression

Get one template by id or alias, including its subject, html and text. Every save is live: there is no draft/publish cycle.

get_template

Get one subscription topic: name, description, default and visibility.

get_topic

Get the team's plan name (`plan`), sending limits and usage: the send limit (emails_per_day or emails_per_month), domain limit and contact limit (`limits.contacts`, null when unlimited), emails accepted so far today (UTC) and when that counter resets, and on a monthly limit a `period` object with the period's emails_sent, included volume, whether sending past it is on and when the period ends. A self-hosted instance reports cloud=false with null plan, limits and period; the instance's own (system) team reports cloud=true with the same nulls.

get_usage

Get one webhook endpoint by id: URL, subscribed events and status. The signing secret is not returned by these tools; it is available by rotating it in the MillionSend dashboard or from the REST API.

get_webhook

List the team's active API keys: name, creation and last-used times. Tokens are never returned; a lost token means a new key.

list_api_keys

List broadcasts with their status (draft, scheduled, sending, sent).

list_broadcasts

List the custom contact property definitions (key, type, fallback) usable on contacts and in templates.

list_contact_properties

List contacts of the team, oldest first, with cursor pagination. segment_id limits the list to that segment's members; include=properties,topics attaches the typed property map and the topic subscriptions to every item.

list_contacts

List sending domains with verification status. Emails can only be sent from a verified domain.

list_domains

List the team's transactional emails (sent, queued and scheduled), oldest first, with cursor pagination.

list_emails

List segments (saved audience filters or manual contact lists) — the targets broadcasts are sent to.

list_segments

List suppressed addresses — bounces, complaints and manual blocks that every send skips, plus unsubscribes that block topic sends and broadcasts only — oldest first, with cursor pagination. origin filters to one kind. Addresses erased for GDPR/LGPD are hidden here and reachable by id only.

list_suppressions

List email templates (name, alias, timestamps), oldest first, with cursor pagination.

list_templates

List subscription topics (newsletter, product updates, ...) contacts can opt in or out of; topic ids scope sends and broadcasts.

list_topics

List webhook endpoints with their subscribed events and status (list rows never carry signing secrets).

list_webhooks

Remove a contact from a manual segment. The contact itself is kept.

remove_contact_from_segment

Unblock up to 1000 addresses in one call, by emails or by ids (exactly one of the two). Returns only the rows actually removed.

remove_suppressions