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Premium Infrastructure

Email Gateway & Relay —
Protect and Deliver

Inbound gateway filters spam, viruses, and phishing before they reach your users. Outbound relay sends mail through clean IPs with DKIM signing for great deliverability.

See PlansTalk to Sales

Gateway & Relay Features

Protect inbound, improve outbound — without changing your mail server.

shieldMulti-Layer Inbound Filter

SpamAssassin + ClamAV + sandboxing + AI heuristics block 99.9% of spam, viruses, and phishing.

routerClean Outbound Relay

Send via our IPs with established reputation. Skip blacklist headaches, improve inbox rates.

policyDKIM + DMARC Help

We configure DKIM signing for outbound and DMARC validation for inbound. Proper auth = better delivery.

quarantineQuarantine Webmail

Users review held messages in browser, release false-positives in one click.

auto_graphDetailed Reports

Daily, weekly, monthly reports on filter activity, top spam sources, and delivery stats.

support_agentMigration Help

We help update DNS, configure your existing mail server to use the gateway/relay, and tune rules.

Why Serversium?

Feature
Serversium Edge
Traditional Service
Infrastructure
NVMe + redundant network
Standard disk / single uplink
Security
DDoS / WAF / Firewall
Basic / paid add-on
Support
24/7 technical team
Limited / business hours only
Product Range
VPS, Dedicated, Hosting, Mail, Game, Colocation
Limited service range
Management
Client panel + fast provisioning
Manual setup / slow activation
Data Center
Redundant power & network
Single feed / outage risk

Inbound Gateway vs Outbound Relay — When You Need Each

Email is the #1 vector for cyberattacks — phishing, ransomware, business email compromise (BEC) all start in the inbox. A gateway intercepts inbound threats before they reach your users. And if your outbound IP gets blacklisted (it happens to everyone), a relay immediately restores your deliverability.

routerTL;DR: Gateway = Inbound Shield, Relay = Outbound Clean IP

Inbound gateway: your domain's MX records point to our gateway. All incoming mail is scanned for spam, viruses, phishing, and malware before forwarding to your actual mail server. Your users never see malicious mail. Outbound relay: your apps/servers send via our SMTP endpoint. We sign with DKIM, send from clean IPs, and handle bounce management. Your domain's sending reputation improves and inbox rates increase.

shieldEnterprise Mail Protection

Inbound filtering for on-prem Exchange or hybrid M365 setups.

codeSaaS Transactional Mail

Outbound relay for password resets, notifications, order confirms.

shopping_cartE-Commerce Marketing

Send newsletters and abandoned cart mail with great deliverability.

businessEnterprise Outbound

Clean outbound relay for corporate mail when your IP gets listed.

policyCompliance / Archiving

Combine with our archiving service for full lifecycle mail compliance.

buildISP / MSP Bulk Mail

ISPs and MSPs can offload filtering and relay for customer mail.

Frequently Asked Questions

What is an email gateway?add_circle
An email gateway sits in front of your real mail server, filtering inbound messages for spam, viruses, and malicious content before they reach your users. Improves security and deliverability.
What is an SMTP relay?add_circle
An SMTP relay accepts outbound messages from your apps/servers and forwards them with our clean IPs and DKIM signing. Improves deliverability and lets you send from IPs that may be blacklisted.
Do you offer both inbound and outbound?add_circle
Yes. Gateway plans cover inbound filtering. Relay plans cover outbound forwarding. Combined plans handle both directions.
How does the inbound filter work?add_circle
Your domain's MX records point to our gateway. We filter all inbound mail (spam, viruses, phishing) and forward clean messages to your real mail server.
How does the outbound relay work?add_circle
Your apps/mail server send via our SMTP endpoint with auth credentials. We rewrite the From header (if needed), sign with DKIM, and deliver via our clean IPs.
Will my IP reputation improve?add_circle
Yes for outbound relay. Your delivery improves because mail comes from our IPs, which have established clean reputation across all major providers.
What about throughput?add_circle
Standard plans: up to 50k messages/day. Pro: 500k/day. Enterprise: unlimited with custom IP allocation.
Is DMARC/SPF/DKIM supported?add_circle
Yes. We help configure all auth records during setup. DKIM signing applied automatically to outbound relay.