Cold email infrastructure

Own servers, own IP addresses, own reputation.

Domains, mailboxes, IP addresses, DNS and deliverability checks in one place. Integrate it with your existing outreach tool. Your infrastructure is yours alone, no one else's sender reputation affects yours.

Dedicated IPs. Automatic SPF, DKIM, DMARC. Export to Instantly, Smartlead, Colldly, Mystriky.

From order to first email

1

You order a server

Pick a provider and size. We configure the server, IPs, and reverse DNS for you. Your servers are yours, shared with no one.

2

You add domains

We write SPF, DKIM, DMARC, MX and your custom tracking domain automatically and verify on the authoritative nameserver. Not a guess.

3

You connect mailboxes to your tool

We create mailboxes and verify them with a test message. Connect them to Colldly with one key, or to Instantly/Smartlead with CSV.

What we do differently

Setup check for every mailbox

We verify each new mailbox with a test message via an independent verification service: SPF, DKIM, DMARC, and reverse DNS. You'll catch errors before your first campaign.

Email text check

Your campaign text goes through the same spam filter mail-tester uses. You get a score 0–10 and see what hurts it.

Blocklists monitored

We check your IP addresses on 37 blacklists every day, including Spamhaus, SpamCop and Barracuda. An address listed on a major list is automatically taken out of sending and we email you. You can also watch other addresses.

Custom tracking domain

Each of your domains gets its own tracking record. You don't share it with other senders, so their reputation won't sink yours.

All in one place

We read sent and bounced messages straight from your server logs. Domain, DNS, IP, and mailbox status all on one screen.

No vendor lock-in

Hetzner, Contabo, or your own server via SSH. Your credentials, your infrastructure. Leave anytime.

Proof, not promises

We don't promise, we measure

Deliverability can't be promised, only measured. That's why we verify every mailbox with a test message, check IPs daily against blocklists, and show results in your panel.

Domains with valid DKIM
100 %
of 8 verified domains
Domains with valid SPF and DMARC
100 %
both records good

Numbers are live. Computed from real measurements on the infrastructure, updated as things change.

Return on investment

What these mailboxes really bring you

Drag the slider for mailbox count and enter average deal value. See revenue estimate and cost vs. other providers.

250
€

How much revenue one new customer brings on average.

From emails to revenue per month
Emails sent250 mailboxes × 30 emails × 20 workdays150 000
Replies5% of sent7 500
Positive replies20% of replies1 500
Calls scheduled50% of positive750
Calls completed70% of scheduled525
Deals closed25% of completed131
Potential revenue per month
655 000,00 €
What these mailboxes cost per month
Google Workspace
250 × 6 € per mailbox
1 500,00 €
Microsoft 365
250 × 5 € per mailbox
1 250,00 €
ColdEmailServer
Flat base, 1 IP included + 6 extra
129,00 €

91 % lower cost than Google Workspace.

At very low volume (under 40 emails/day per mailbox), a dedicated server may have lower initial deliverability than Gmail. Warm up mailboxes in your tool (e.g. Colldly) before campaigns, and connect your own Gmail if needed.

Numbers are estimates. We'll create a custom calculation after you sign up.

Get started

Pricing

One plan, unlimited mailboxes and domains. Buy domains yourself to own them. Server and one dedicated IP included.