PowerMTA is a serious high-volume MTA and it is commercial software from Bird with no free edition. Licences are reported in the region of $8,000 a year. If you already know why you need per-domain throttling and IP pool management, this page is for you. If you are not sure, that is your answer.
None
Commercial only · pricing by quote from Bird
PowerMTA costs thousands a year and there is a free, MIT-licensed alternative that will serve most senders perfectly well. That alternative is Postal: it delivers mail directly from your own IP, manages its own queues, tracks messages and exposes an API, for no licence fee at all. PowerMTA becomes worth its cost at the point where per-domain throttling, granular IP pool rotation and detailed delivery accounting are what stand between your mail and the inbox — which is a real point, reached by a small minority of senders. We sell the server either way and make nothing on the licence, so there is no reason for this page to push you upmarket.
Start here instead: Postal — free, MIT, delivers mail · Postal vs PowerMTA · Postfix on your own VPS · All six compared
Stated fairly, because when you need these things nothing else does them as well.
Different receiving providers accept mail at different rates and punish different mistakes. PowerMTA lets you shape delivery per destination domain — rate, concurrency, retry behaviour — which at scale is the difference between mail arriving and mail being deferred into oblivion.
Rotating across a pool of addresses, warming new ones gradually, isolating transactional traffic from marketing, and detailed accounting files that tell you what happened to every message. Manageable by hand at small scale; not at large.
Taken from the project's own documentation on 17 August 2026, not from a hosting page's estimate. The source is named underneath so you can check it.
| Licence | Commercial, owned by Bird (previously Port25, then SparkPost) |
|---|---|
| Cost | Quote only |
| Stack | Native MTA daemon |
| Also needs | A licence is mandatory. Unlicensed copies circulate; running one is both a legal and a deliverability risk. |
| Sends mail itself | Yes — it is a mail transfer agent |
Sources, checked 17 August 2026
Read at each vendor's own documentation rather than taken from a summary. Follow the links and check for yourself — figures like these move.
Four reasons it might be, and four that should send you to Postal.
Rotation, warm-up scheduling and traffic isolation across many addresses is what PowerMTA is built to do.
If you already know which receiving providers defer you and why, you know why this matters.
Detailed per-message records are sometimes a requirement rather than a nicety.
At genuine scale it is a rounding error against the value of mail that lands.
Then you do not. Start with Postal, which is free, and move if you hit a wall you can name.
Legitimate licences come from Bird. Anything else is a risk you carry, not the seller.
Almost every PowerMTA feature is about managing plurality. With one of each, there is nothing to manage.
There are none. Budget for MailWizz or similar on top, and for its licence too.
If you are licensing PowerMTA you are past the point of sharing a host node, so the sensible shape is a VDS with dedicated cores and dedicated RAM rather than an allocation from a shared pool. Talk to us about additional IPv4 addresses at the same time — IP pool management is most of why you are here.
Dedicated cores and dedicated RAM. Anyone paying for a PowerMTA licence is past the point of sharing a host node.
2 Cores · 4 GB Dedicated RAM
60 GB NVMe · 10 Gbps Port
$32.95/mo
This is a starting point, not a rule — list size and sending frequency matter more than the software itself. See all plans · compare all six packages · ask before you order.
The server side of a PowerMTA deployment, with reverse DNS set free on request and additional IPv4 addresses available. The licence comes from Bird — we make nothing on it, and we will happily tell you if Postal would do the job.
