Changelog

What's new — the platform, always moving

We ship often. Here's the recent history — the features you can use today, newest first.

8 August 2026API

Build the whole integration with an API key

Contacts, lists, segments, the Inbox and webhook subscriptions all accept an API key now, not only a dashboard login. A server integration can build the audience, target it, read replies and subscribe to events without ever holding a session — which is what the platform-event webhooks were for in the first place.
Key scopes are enforced end to end: a read-only key gets 403 with the scope it needs, and a viewer role can no longer create or delete segments, lists, journeys, templates or campaigns — a gap that had been open.
Failure reasons are safe to show a user. A transport error used to surface raw internals in `failed_reason`; it now reports an actionable message, with the raw detail kept in our logs.
Billing corrections worth naming: add-ons in zero-decimal currencies such as JPY were charged 100× the intended amount, and a retried card top-up could credit a balance twice. Both are fixed and guarded.
An inbound reply to a sender ID that two accounts share could land in the wrong account's Inbox — including a STOP, which would then suppress the wrong contact. Replies are now attributed to whichever account most recently messaged that number.

6 August 2026Security

Inbound email attachments are scanned with ClamAV before anything is written to disk, and the check is fail-closed: if the scanner is unreachable or times out the file is withheld and an alert is raised, never stored unscanned.
Those attachments now download only through an authenticated, customer-scoped endpoint that forces a download instead of rendering inline — so a PDF from an external sender can never execute on a wezend.com origin. Campaign images stay public, because mail clients have to load them.
Sender-domain verification now returns a reason and a hint per check, not just a red cross. If you published a valid DKIM key under the wrong selector it says which selector you used and which one we sign with — and a failure on our side is phrased as ours, not yours.
A bug fixed along the way: the DKIM health check only probed A and CNAME records, but our managed key host publishes a TXT record — so verification reported DKIM as failing for every domain, whatever the customer's DNS said.

6 August 2026API

Mark a send `transactional: true` and it is exempt from the monthly marketing cap — over the cap it bills as overage instead of stopping. A heavy campaign month can no longer take down your password-reset email.
Three new platform-webhook events: `contact.unsubscribed`, `contact.bounced` and `message.received`. If WeZend isn't your system of record, an opt-out anywhere — unsubscribe link, preference centre, SMS STOP — now pushes to your endpoint so your own consent records stay in step.
Per-send `reply_to`, `from_name` and custom `headers` on the send API. Headers are safelisted, not passthrough: a reserved name comes back as a 400 that names it, rather than vanishing silently.
Recipients can reply to a campaign email and the reply lands in the shared Inbox, threaded onto the same contact — on one MX record on a reply subdomain, so your apex domain's existing mail stays where it is.

5 August 2026Features

SMS is now a first-class campaign channel: pick it in the campaign wizard and get a composer with live character/segment counting and your approved sender IDs.
Bulk import got faster and safer: paste a whole recipient list in one go, with real E.164 phone validation on every row.
Delivery receipts from more carriers land in your message timeline automatically, so delivery status is accurate across more routes.
Flows no longer require a connected store: signup and inactivity triggers work standalone, and predictive scoring now works out of the box.
Billing hardening across the board: safer invoicing, receipt emails on every charge, and campaign runs that stall are now flagged instead of hanging silently.

28 July 2026Billing

Opt-in auto-upgrade: when a monthly quota fills up, WeZend moves you up a band or plan automatically so campaigns keep sending — no more mid-send stops.
AI writing and recommendations are now metered per plan, with included monthly generations and a clear counter — plus stronger AI models on higher plans.
Invoices are downloadable as PDFs with a full line-item breakdown.

16 July 2026Go-live

AI Studio can now turn a plain-language prompt into a full draft journey — triggers, delays, sends and splits — ready to open in the visual builder.
Inbox-placement seed testing: send a real email to your own seed inboxes and track delivery and opens per address before a big campaign.

10 July 2026Growth

AI Brand Voice — set your tone once and every AI-written email, SMS and subject line sounds like your brand.
Per-recipient product recommendations as an email block, rendered at send time.
Unique discount-code pools — {{discount_code}} resolves to a single-use code per recipient.
AI Performance Analyst turns your weekly digest into a plain-language narrative with a next move.
SMS keyword opt-in — grow a consented list with "text JOIN to subscribe".
Spam pre-flight and BIMI support for stronger inbox placement.
Customer outbound webhooks and a preference-center snooze option.

4 July 2026Features

AI Studio (v1): one prompt → a draft campaign with a segment, written email, A/B subject and suggested send time.
Smart send-time optimization schedules each contact's message for their most-active hour.
Hosted landing pages you can publish to a URL without a website deploy.
Email template gallery, campaign approval workflows and DMARC monitoring.

28 June 2026AI

The AI Connector exposes WeZend as an MCP server and a one-click ChatGPT GPT Action, so your assistant can read, configure and (with confirmation) operate your account.

20 June 2026Platform

Multi-tenant white-label for partners and agencies, scoped read/write/send API keys, and a 21-day domain warm-up autopilot.

Replace your patchwork of messaging APIs, CDP and automation tools with a single engagement platform built for scale.

No credit card required · EU data residency · 99.99% uptime SLA