The platform
One platform. Five surfaces.
One platform. Five surfaces.
Built end-to-end.
Infrastructure, campaigns, deliverability, analytics, and a developer API engineered as one system, not five acquired ones.
Multi-tenant SMTP infrastructure that doesn't crumble.
Per-tenant queues with priority weights, per-IP and per-domain throttling, RFC-compliant bounce classification, and no shared fate between workspaces.
- Direct MX delivery + intelligent retry curves
- Weighted routing rules that split traffic across your IPs
- MTA-STS policy hosting and ARC seal generation
- Per-domain rate limiting with burst tokens
VMTA pools · live
primary-warm4 IPs
healthy
transactional2 IPs
healthy
marketing-eu6 IPs
warming
cold-pool3 IPs
ramping
Everything in the box
No 'enterprise upgrade' for the basics.
Every feature below works on the Free plan. Paid plans raise the volume and the resource limits, and Scale adds dedicated IPs.
Multi-domain sending
Verify as many sending domains as your plan allows, each with its own DKIM key.
Multi-tenant
Workspace isolation on every query, role-based access, switch without logging out.
VMTA pools
Group IPs and split traffic across them by weight, per recipient domain.
DKIM, SPF, DMARC
Generated, validated, monitored. Aggregate reports parsed for you.
Live queue inspection
Drill into deferrals, retries, and bounces in real time.
Webhooks for everything
Inbound mail POSTed to your endpoint, signed and timestamped.
Email validation
Check syntax, domain, MX and mailbox before an address costs you a bounce.
Blacklist monitoring
Check your domains and IPs against 15 DNSBLs, on a schedule you set.
Inbound routing
Mailbox, forward to several people, or signed webhook. Set it per address.
Ready to see your sending?
Spin up a workspace in 5 minutes. Free plan, no credit card required.