improved v0.7.0
Lower, simpler pricing
- 100 emails/month free, then $0.35 per 1,000 — cheaper than any other full email platform.
- Usage-only model is unchanged: no subscription, no plan tiers, billed per 1,000 rounded up.
What's new.
Every meaningful change to the MailStack platform, newest first.
added v0.6.0
Usage-only billing & spend caps
- New usage-only billing: 3,000 emails/month free, then $0.40 per 1,000 — no subscription.
- Per-organization hard monthly spend cap to prevent runaway overage.
- GET /v1/billing/usage returns emails sent, free remaining, and billable overage for the current period.
added v0.5.0
Batch sending
- POST /v1/emails/batch accepts up to 100 emails per request with per-item results.
- Each item is validated and queued independently; invalid items return a per-item error.
improved v0.4.1
Domain verification reliability
- POST /v1/domains/{id}/verify now re-checks DNS on demand and surfaces per-record status.
- Easy DKIM records are returned immediately on domain creation.
added v0.4.0
Suppression list
- Hard bounces and complaints automatically add recipients to an org-scoped suppression list.
- Sends to suppressed recipients are rejected before they leave the queue.
added v0.3.0
Scoped API keys
- ms_live_ API keys with per-key scopes (emails:send, domains:read, and more).
- Keys are shown exactly once on creation; only a prefix + hash are stored.