Bulletproof Email
Infrastructure
Every feature engineered for maximum deliverability, reliability, and freedom for high-risk senders.
Dedicated Sending Servers
Your emails travel through servers that belong exclusively to you. No shared infrastructure, no reputation bleed from other senders' poor practices, no surprise suspensions because another client violated TOS. You are the only tenant on your infrastructure.
Each client gets isolated VPS instances running Postfix or Exim configured specifically for their sending patterns, volume, and destination domains. Your sending reputation is entirely your own to build and protect — no one else's behaviour can affect your deliverability.
When mainstream ESPs suspend accounts without warning for "policy violations," dedicated infrastructure keeps you running. There is no shared pool of senders, no automated risk-scoring system that catches you in friendly fire, and no terms of service that prohibit your industry.
- Dedicated IPv4 addresses per server
- Complete isolation — dedicated to your business only
- Custom PTR/rDNS records
- Server resources reserved exclusively for your traffic
- SMTP & API access — no server credentials handed over
Your Server — EU-West-1
85.12.44.201 — Active
Your Server — US-East-1
142.68.11.77 — Active
Shared ESP
Account Suspended
Policy violation — industry banned
What every SendHaven server includes
The parts of email infrastructure that high-risk senders usually get wrong, done once and kept running. The same list applies to one server or forty.
Aged sending domains, sourced and owned by us
Fresh domains are the fastest way to the spam folder. We buy aged domains with a clean history, configure them, and own them, so your brand domain never carries sending risk. When one burns, we replace it. You supply nothing but your content and your list.
Authentication configured and verified
SPF, DKIM with 2048-bit keys, DMARC with alignment, ARC, reverse DNS and matching HELO on every server and every domain. Each setup is verified at 10/10 on Mail-Tester before the first production send, and re-checked after every domain or IP change.
Managed IP warm-up on every plan
New IPs are warmed over 4 to 6 weeks: small volumes to your most engaged contacts first, daily reputation checks at Google and Microsoft, volume held back whenever deferrals rise, full rate released once reputation is stable. Included from the single-server Starter plan up.
Replacement when an IP burns
For high-risk categories a burned IP is a certainty, not a risk. When blacklists or inbox rates say a server is done, we replace it with a clean IP and the same configuration, re-warm on a compressed schedule, and keep sending on your remaining servers in the meantime. No ticket queue, no extra invoice.
Rotation across servers
On four servers and up your platform sees one endpoint and we rotate across the dedicated IPs behind it, round-robin on Growth and reputation-weighted per destination on Scale, so a bad day at one mailbox provider never takes down the whole campaign.
Dashboard, SMTP and API
Lists and segments, templates, campaigns, scheduling, open and click tracking, bounce and complaint processing, suppression lists and reporting in the SendHaven dashboard, with your servers registered as delivery servers automatically. Prefer your own platform? Connect it through SMTP relay credentials or the REST API.
Monitoring you do not have to run
Blacklist checks on every IP and domain, Google Postmaster and Microsoft SNDS reputation reviewed daily, bounce and complaint rates watched per server. You see the numbers in the dashboard; we act on them before they become a problem.
Honest capacity
A warmed standard server sends around 1,500 emails a day at strong inbox rates, roughly 45,000 a month. Volume scales by adding servers, and the Custom tier builds clusters for larger senders. We do not sell "unlimited", because Gmail and Microsoft do not.