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SMTP relay · IP warming · PowerMTA · MailWizz

Anonymous Hosting built for email infrastructure.

Not a generic VPS provider that happens to allow email. A purpose-built deliverability stack: dedicated IPs, managed warmup, full FBL processing, PowerMTA tuning, multi-tenant MailWizz hosting. Crypto-paid, no-KYC.

the email stack we host

Every layer of the deliverability stack.

Anonymous hosting for email is a specific competence. Most hosts that allow email block port 25, won't configure rDNS, and have no infrastructure for IP reputation management. We do this as the core service, not as an afterthought.

layer 1 · delivery

SMTP Relay

Dedicated IPs, FBL processing, multi-receiver routing

Three tiers (Starter, Pro, Scale) covering 50K to 200K+ monthly. Managed warmup, custom rDNS, complaint feedback loop processing for Gmail/Yahoo/Microsoft. Bulk-sender compliant per Feb 2024 requirements.

SMTP plans
layer 2 · reputation

IP Warming

30-day ramp from cold to 50K/day

Automated warmup against engaged seed lists across major mailbox providers. Day-by-day volume schedule, daily reputation monitoring, mid-warmup adjustment based on inbox placement signals.

Warming details
layer 3 · MTA

PowerMTA

Managed setup, tuning, license rental

Industry-standard MTA for high-volume sending. We provide the license, the server setup, the configuration tuning, the monitoring, and the operational support. From €99/mo rental or buy outright.

PowerMTA options
layer 4 · EMS

MailWizz / Acelle

Self-hosted EMS, multi-customer support

For ESP operators serving end-customers. Self-hosted MailWizz or Acelle on dedicated hardware. Multi-tenant configuration, customer billing integration, white-labeling. From €119/mo VPS-3 to dedicated.

EMS hosting
layer 5 · domains

DNS + Authentication

SPF, DKIM, DMARC, MTA-STS, BIMI

The full authentication stack configured at provisioning. 2048-bit DKIM (mandatory in 2026), DMARC policy progression, MTA-STS enforcement, optional BIMI for visual trust. €99 one-time or included in higher tiers.

DNS setup
layer 6 · monitoring

Deliverability Monitoring

Postmaster Tools, SNDS, 80+ RBLs via Telegram

Real-time monitoring of IP reputation across major receivers. Postmaster Tools v2 (mandatory Pass/Fail since Oct 2025), Microsoft SNDS, 80+ RBLs. Alerts via Telegram. €49/mo addon to any service.

Monitoring details
why anonymous email hosting is specifically different

Email is the hardest workload to host anonymously.

Most "anonymous hosting" providers cater to static-site customers, Tor relay operators, or generic compute workloads. Email is harder. Email requires port 25 outbound (which many hosts block by default), proper reverse DNS aligned with the domain (which generic hosts don't configure), IP reputation that gets built over weeks of warming (which generic hosts can't help with), and ongoing operational competence to handle bounce processing, FBL routing, and blocklist responses.

The compounding result is that an anonymous VPS bought from a generic provider and used for email sending typically performs poorly. The IPs arrive with damaged reputation from previous tenants. The rDNS is generic provider-default. The port 25 access is throttled or blocked. The warming has to happen manually with no infrastructure support. By the time the operator works through these issues, weeks of bad deliverability have damaged whatever domain reputation existed.

We are positioned differently. Every IP we ship passes a 14-check verification before customer assignment. The rDNS is configured to match your sending domain at provisioning, not as an afterthought. Port 25 outbound is open by default with FBL routing pre-configured. Warming infrastructure runs against engaged seed lists, not just send-and-pray.

This is what "anonymous hosting for email" actually means as a competence: not "we allow email" but "we run the deliverability stack as the core product, anonymity is the signup posture, not the engineering."

who this is for

Five operator profiles we serve.

B2B cold outreach agencies. Multi-mailbox setups across warmed domains. Subdomain rotation pools. Engaged-list seeding for deliverability. Our Cold Outreach Bundle is built for this profile.

B2C newsletter publishers. Single brand, large subscriber list (typically 50K-500K), regular cadence. SMTP Relay Pro plus DKIM rotation works well. Migration from Mailchimp or similar is a common engagement.

ESP resellers. Operators serving end-customers under their own brand. ESP Starter Kit gives the full stack: dedicated server, PowerMTA license, MailWizz EMS, multi-tenant configuration. From €499/mo plus €1499 setup.

Transactional senders. Order confirmations, password resets, system notifications. Lower volume but high importance for inbox placement. SMTP Starter or VPS-2 with our DNS setup works well.

Privacy-grade operations. Tor hidden services that need outbound mail. Whistleblower platforms. Journalism operations in countries with press-freedom issues. Privacy Stack Pack addresses this specifically with Tor mirror, Monero-only billing, and isolated infrastructure.