Every layer, built to protect delivery.
Not a feature checklist bolted onto a shared relay - a mail server built from the ground up, where authentication, reputation, and visibility are the actual architecture.
A delivery engine built for speed and reliability
ZeroHop MTA connects directly to your recipient's mail server for every send - no third-party relay sitting between you and the inbox.
- Direct-to-MX delivery, not relay-based
- In-flight DKIM signing on your own domain key
- Connection pooling for real sending throughput
- Instant delivery-failure feedback, not a nightly report
Domain authentication, without the manual checklist
SPF, DKIM, and DMARC are non-negotiable for real deliverability. The setup wizard generates everything and verifies it against real DNS - not a guess.
- Automatic DKIM key generation
- SPF, DKIM, and DMARC records generated for you
- One-click, real DNS verification
- Optional automatic setup via Cloudflare
IP reputation, tracked and protected automatically
Every IP in your pool is scored independently. New IPs warm up on a schedule; abusive patterns get suspended before they damage your sender reputation.
- Per-IP reputation scoring and history
- Automatic warm-up scheduling for new IPs
- Abuse-based auto-suspension
- Nothing shared with any other customer
Bounces and complaints, handled in real time
Delivery failures feed directly into reputation protection the moment they happen - not discovered hours later when the damage is already done.
- Real-time bounce detection and classification
- Spam complaint tracking
- Automatic feed into IP reputation scoring
- No manual log-checking required
A real campaign dashboard, not a bare command line
Lists, templates, scheduled sending, and a live sending console - everything in one place, built for people who need to actually manage campaigns, not just trigger sends.
- Lists, templates, and scheduled sends in one place
- Real-time sending console
- Built-in HTML template editor
A real inbox, not just a way to send
ZeroHop MTA receives mail natively on your own domain. Reply, forward, and see authentication status directly in your dashboard.
- Native inbound mail receiving on your own domain
- Reply and forward directly from your dashboard
- SPF/DKIM verification shown on every received message
Full control of your server, no ticket required
Reboot or shut down your dedicated server directly from your dashboard - securely authenticated and audit-logged, not buried behind support.
- Reboot or shut down from your dashboard
- No support ticket required for basic control
- Securely authenticated, audit-logged power actions
Billing that runs itself
Automatic monthly renewal, real invoices, and reminder emails before every charge - not something you have to remember to manage.
- Automatic monthly renewal via PayPal
- Real invoices, generated and downloadable
- Reminder emails before every renewal
Unsubscribe handling, built in from day one
Every email includes a working unsubscribe link. Opt-outs are removed from future sends automatically - not a manual list-cleaning chore.
- Unsubscribe link on every campaign, automatically
- Opt-outs excluded from all future sends
- No manual list maintenance required
Schedule it, walk away
Set a campaign to send at the right moment instead of sitting at your desk waiting to hit send.
- Send immediately or schedule for later
- Automatic dispatch at the scheduled time
- No manual trigger required
Build once, send many times
Save a campaign as a reusable template instead of starting from a blank editor every time.
- Save any campaign as a template
- Reuse across future campaigns
- No rebuilding from scratch
See exactly where your opens come from
Real breakdown by device and email client, built from actual tracking data - not an estimate.
- Opens broken down by mail client
- Desktop vs. mobile vs. tablet visibility
- Built from real tracking data, not estimates
A/B testing that picks the winner for you
Send two variants to a sample of your list, and the system automatically sends whichever performed better - by clicks, with opens as the tiebreaker - to everyone else.
- Test subject lines or full content, variant A vs. B
- Sent to a sample first, winner decided automatically
- Ranked by clicks, ties broken by opens
- Remaining list gets the winning variant automatically
Send to the right people, not just everyone
Narrow a campaign beyond "everyone on this list" - by a custom field, or by how someone engaged with a past campaign.
- Filter by any custom field (plan, region, anything you track)
- Filter by engagement with a past campaign
- Target people who opened, clicked, or didn't engage
- Combine filters for precise targeting
Set it up once, let it run
Trigger-based automations that enroll subscribers and send on their behalf, without you starting a campaign by hand every time.
- Trigger-based enrollment, not manual sending
- Runs continuously in the background
- Managed from its own dedicated dashboard section
Beyond {{first_name}} - real, structured personalization
Merge tags for anything you track, plus auto-generated system tags like invoice IDs and barcodes - built directly into the send, not bolted on with a plugin.
- Custom merge tags from any subscriber field
- Auto-generated invoice IDs per recipient
- Auto-generated barcodes, embedded directly in the email
- Personalized subject lines, not just body content
Transactional email via REST API
Send password resets, order confirmations, and alerts from your application — using the same private infrastructure as your campaigns. No shared relay, no rate-limit surprises.
- Simple POST request, delivered in milliseconds
- DKIM-signed on your own domain key
- Per-key rate limits and daily caps
- Full delivery log for every message
Webhooks — your system reacts in real time
Every open, click, bounce, and unsubscribe fires a POST to your endpoint the moment it happens. No polling. No lag. Your CRM or automation platform stays in sync automatically.
- Fires on opens, clicks, bounces, unsubscribes
- JSON payload delivered in real time
- Configurable per campaign or globally
- Delivery log with retry visibility
Live activity feed — watch your campaign in real time
See every open and click as it happens, timestamped and attributed to the recipient. Not a summary refreshed hourly — a live stream of exactly what is happening right now.
- Real-time stream of opens and clicks
- Every event attributed to the recipient
- Timestamped to the second
- Up to 10,000 events per campaign
Geographic breakdown — see where your audience is
Every open is resolved to a country using real GeoIP data. See at a glance which markets are engaging and which are not.
- Country-level breakdown on every campaign
- Powered by real GeoIP, not estimates
- Sorted by engagement volume
- Visible alongside device and client data
Pause, resume, or stop — mid-send
Something looks wrong halfway through a 10,000-email send? Pause it instantly. Fix the issue. Resume exactly where it left off. No messages lost, no duplicates.
- Pause a live campaign with one click
- Resume from where it stopped — no duplicates
- Stop permanently and archive at any time
- Queued emails held safely during pause
Multiple sending domains — one server, many brands
Add unlimited sending domains to a single installation. Each domain gets its own DKIM key, IP pool, warm-up schedule, and EHLO hostname — completely isolated.
- Unlimited domains per installation
- Each domain has its own DKIM key and IP pool
- Per-domain EHLO hostname for clean PTR matching
- Domain-level reputation completely isolated
Suppression list — global opt-out management
Any address that hard-bounces, complains, or unsubscribes is added to the suppression list automatically. They will never be emailed again — across any campaign, on any domain.
- Automatic suppression on hard bounce or complaint
- Applies globally across all campaigns and domains
- Manual add or bulk import via CSV
- Exportable for cross-platform compliance
Audit log — a full trail of every action
Every campaign send, pause, stop, API key creation, and domain change is recorded with a timestamp and actor. Accountability built in, not bolted on.
- Every action logged with timestamp and actor
- Campaign events: sent, paused, resumed, stopped
- API key creation and revocation tracked
- Domain changes and DNS verifications recorded
Spam score checker — know before you send
Run your email through a spam analysis engine before it leaves your server. Catch subject line problems, image-to-text ratio issues, and blacklisted phrases before they damage your reputation.
- Pre-send spam score analysis
- Flags subject line and content issues
- Image-to-text ratio check
- Run at any time before sending
Inbound email routing — route replies where they belong
Define rules to route incoming mail to different inboxes, webhooks, or forwarding addresses based on the recipient address or subject. No separate service required.
- Route by recipient address or subject
- Forward to external addresses or internal inboxes
- Trigger a webhook on any inbound message
- Built into the same server — no separate service
Subscription forms — grow your list on your site
Generate an embeddable signup form for any list. Paste one line of code into your website — subscribers land directly in your sending list, ready for your next campaign.
- One embeddable snippet per list
- Subscribers added directly to your list
- Customisable fields and confirmation message
- No third-party form service required
Domain send limits — protect reputation per recipient domain
Cap how many emails you send to Gmail, Outlook, or Yahoo per day. Avoid tripping spam filters before your reputation is established.
- Per-recipient-domain daily and hourly caps
- Respected automatically during send
- Prevents tripping spam filters during warmup
- Configurable per domain from your dashboard
Custom tracking domain — your brand in every link
Replace generic tracking URLs with your own subdomain. Every open pixel and click link uses your domain, not a third-party one. Better deliverability, better brand recognition.
- Your own subdomain in every tracked link
- No third-party domain in your emails
- Improves deliverability and trust
- Set once per sending domain
DMARC reports — see who is sending on your behalf
Receive, parse, and display aggregate DMARC reports directly in your dashboard. Spot unauthorised senders and misaligned infrastructure before they damage your domain reputation.
- Receive and parse aggregate DMARC reports
- Pass/fail breakdown per sending source
- Spot unauthorised senders immediately
- Visible per sending domain in your dashboard
Campaign cloning — reuse what works
Clone any sent or draft campaign in one click. The copy inherits the subject, content, list, and settings — ready to adjust and send again without starting from scratch.
- Clone any campaign with one click
- Subject, content, list, and settings all copied
- Edit and send independently
- Works on sent, paused, or draft campaigns
Per-domain EHLO hostname — clean PTR matching
Every sending domain uses its own EHLO hostname. Your PTR record, EHLO, and from-domain all align — which is exactly what serious mail receivers check for.
- Custom EHLO hostname per sending domain
- EHLO aligns with PTR for better deliverability
- No shared generic hostname leaking your server
- Configurable from your sending domain settings
Ready to see it running on your own domain?
Real server, real IPs, real MTA - not a shared relay with your name on it.