A dedicated sender set up for you
A dedicated sender is sending infrastructure PhantomFox sets up and runs for one business or one client, done for you rather than self service. It suits an agency that keeps clients apart and wants the complaints from a campaign to land somewhere other than its own domain.
On this page
What is a dedicated sender?
Sending infrastructure that is yours rather than shared. PhantomFox sets it up, warms it and runs it, and you send through it.
| What you get | Shared sending | Dedicated sender |
|---|---|---|
| Who else sends on it | other PhantomFox customers | your business alone |
| Who sets it up | you, in about five minutes | PhantomFox, for you |
| Separation between clients | one pool | one sender for each client, kept apart |
The middle row is the real difference in practice. Shared sending is self service and you are live in five minutes, which is what how it works describes; the dedicated route is done for you and set up around what you are actually running.
Who is this for?
Agencies, mostly. Cold outreach and lead generation shops sending for clients, resellers who put their own name on the sending, and any agency that has already burned a domain and will not risk another one.
The pattern is the same in every case: somebody sends for several clients, needs those clients separated, and does not want one campaign’s complaints to reach the next client or the agency’s own address. Buying infrastructure rather than software is the point.
What happens when a campaign brings complaints?
The unsubscribes and the spam reports land on the sending infrastructure, not on your domain. With a dedicated sender they land on the one reserved for that client, so one bad campaign stays inside that client’s lane.
That containment is what an agency is really paying for. The domain the agency invoices from, and every other client on the roster, are outside the blast radius of a campaign that went badly.
Do I still avoid the setup entirely?
Yes. There is no domain to buy, no DNS record to add, no DKIM, SPF or DMARC to configure and no warming period to sit through, because PhantomFox does all of that before you get the sender.
That is true of shared sending too. The difference with a dedicated sender is who else is on the infrastructure, not how much work you have to do to use it. Volume behaves the same way on both, which is the arithmetic on bulk sending.
What does it cost and how do I ask?
It is quoted rather than published, because the number moves with the volume you send and the number of clients you are keeping apart. Everything else PhantomFox charges is a published number.
The self service prices, the single send package and the prepaid wallet are on pricing. For a quote, go to contact with the volume, the number of clients and whether you need your own name on the sending. The short answers on warming and the inbox are on the FAQ.
Sources: the dedicated sender as the done for you option, the warmed senders, the absence of a domain, DNS record and warming period, and the complaints landing on the sending infrastructure rather than your domain, the PhantomFox one pager (2026-09-23); the dedicated sender carries no published price, so none is stated here.
Will it land in the inbox?
Nobody can promise that, and PhantomFox does not. A receiving mail server makes that decision on its own. What is under our control is the sender, which was warmed before you touched it, and the complaints, which land on our infrastructure rather than your domain.
What does a warmed sender mean?
It means the sending reputation was built before you arrived, by us, on our own infrastructure. The practical effect is that your first campaign sends at the rate your hundredth one would.
Is there a warming period before I can send?
None. The warming already happened on the sender you are given, which is why there is no slow ramp of small sends before a real campaign is allowed out.
What we do not do
- The dedicated sender is not priced on this website. It is quoted for the business that asks, because the number depends on volume and on how many clients are being kept apart.
- A dedicated sender does not buy a promise about the inbox. A receiving mail server makes that decision and no provider overrides it.
- PhantomFox does not sell, rent or supply email lists to a dedicated sender client any more than to anyone else.