For agencies

Email infrastructure for every client

One PostedApi account covers your whole roster. Spin up an isolated server per client, keep deliverability tidy, and get a single invoice at the end of the month.

A client roster in one account
Multi-client

One account, many clients

Stop opening a separate vendor account for every new client. Spin up an isolated server for each one under a single PostedApi account — same login, same bill, and zero cross-contamination between senders.

  • A dedicated server and message streams for every client
  • Granular user permissions — control who can send, edit and bill
  • One consolidated invoice with per-client usage breakdown
See how Message Streams work
Built for client work

Everything an agency needs, nothing it doesn't

White-label friendly

Your clients see your agency's name and domains, never ours. Point their DNS at your infrastructure and keep the whole stack invisible.

Per-client streams

Transactional, broadcast and inbound traffic stay neatly separated per client, so one noisy newsletter never drags down another client's receipts.

Consolidated billing

All clients roll up into one predictable monthly invoice, itemized per server. Your bookkeeper can finally stop hunting for receipts.

Onboard a client in minutes
Fast onboarding

Onboard a client in minutes

New client kickoff this afternoon? Create their server over coffee. The whole flow takes longer to explain than to do — and it never touches your other clients' traffic.

  • Create a fresh server for the client in one click
  • Generate a server token and hand it to their developers
  • Add two DKIM records to their DNS — we show you exactly which
  • Go live: the first email usually lands before the kickoff ends
Read the onboarding guide

Tidy up your client email, once and for all

One account, every client, zero deliverability drama. Start at $1.90 today and bring your whole roster under one roof.