Selva Mail vs
Postmark
Billed per email against a monthly allowance, per server.
What Postmark does well
The best-regarded deliverability in transactional email, and it is not close. Separate streams for transactional and broadcast traffic, fast support that actually knows email, and detailed per-message event data.
Where the pricing model hurts
Premium pricing per email, per server — at real volume it is among the most expensive options available, and there is no marketing side to the product at all.
What it costs at 5k, 10k and 25k
Assumes four emails per contact per month. Selva Mail is a one-time $497 license, then AWS bills you for what you actually send.
| Contacts | Postmark | Selva Mail (AWS) | Annual saving | Payback |
|---|---|---|---|---|
| 5,000 | $69/mo | ≈$2/mo | $798 | ~7.5 months |
| 10,000 | $69/mo | ≈$5/mo | $762 | ~7.8 months |
| 25,000 | $163/mo | ≈$12/mo | $1,812 | ~3.3 months |
Public list prices, 2026. Where a competitor is free software, the saving column is blank on purpose — the cost you are comparing is your own server and your own hours, not a license fee.
Selva Mail costs $497 once, then AWS at cost — about $6/mo at 50,000 emails. It is priced per email sent, not per contact, so it does not grow with your list.
Migrating from Postmark
Repoint the API and rebuild templates. Postmark’s message streams map onto Selva Mail workspaces; its per-server model has no equivalent because Selva Mail does not meter servers.
Stop paying for the same contacts
every month.
$497 once. Runs on your infrastructure, sends through your own AWS SES account. Launch buyers get agency rights permanently — unlimited client workspaces. First 100 licenses.