SMTP Email Hosting — Reliable Outbound Mail Relay Servers
Your application needs to send email — transactional notifications, password resets, order confirmations, reports, alerts. But shared SMTP services throttle your sending, blacklist your IP because of another customer, or inject tracking pixels into your messages. AnubizHost SMTP email hosting gives you a dedicated SMTP relay with clean IP addresses, authenticated sending, and no third-party interference in your outbound mail.
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Dedicated SMTP Relay Infrastructure
AnubizHost SMTP hosting provides you with a dedicated Postfix SMTP relay server optimized for outbound mail delivery. Unlike shared SMTP services where thousands of customers send from the same infrastructure, your relay runs on dedicated resources with dedicated IP addresses. Your sending reputation is entirely your own — not degraded by other customers' behavior.
Each SMTP server is configured with proper authentication (SMTP AUTH with STARTTLS), rate limiting to prevent accidental floods, and queue management that handles temporary delivery failures with intelligent retry logic. Outbound connections use TLS 1.3 where supported by the receiving server, with automatic fallback for servers that do not support encryption.
For applications that need to send email, our SMTP relay integrates with any programming language or framework that supports SMTP. Point your application at your dedicated SMTP server with the provided credentials, and mail flows. No proprietary API required — standard SMTP protocol means universal compatibility with your existing code.
Deliverability and Authentication
High deliverability starts with proper authentication. Every AnubizHost SMTP server is configured with DKIM signing for all outbound mail, producing cryptographic signatures that verify the message originated from your authorized server. Combined with SPF records that list your dedicated IP as an authorized sender and DMARC policies that instruct receiving servers how to handle unauthenticated mail, your messages pass authentication checks at every major ISP.
We pre-verify that all assigned IP addresses have clean reputation across major blacklist services (Spamhaus, Barracuda, SORBS, SpamCop, and others) before assigning them to your server. Dedicated reverse DNS (PTR records) matching your sending domain are configured automatically, satisfying the reverse DNS requirements that many mail servers enforce for inbound delivery.
Ongoing deliverability monitoring checks your IP reputation hourly across dozens of blacklist databases. If a listing is detected, you are notified immediately with recommended remediation steps. For managed plans, our team handles the delisting process proactively, typically resolving listings within hours of detection.
Integration and API Access
Our SMTP servers support standard SMTP submission on port 587 with STARTTLS, as well as SMTPS on port 465 for implicit TLS. Both methods are universally supported by email clients, web applications, scripting languages, and automation platforms. Configure your application once and send reliably without vendor lock-in.
For programmatic integration, we also provide a REST API that supports message submission, delivery status queries, bounce retrieval, and sending statistics. The API uses standard HTTP with JSON payloads and supports authentication via API keys. Webhooks deliver real-time notifications for delivery events — sent, delivered, deferred, bounced, and complained — to your application's endpoint.
Common integration scenarios include WordPress transactional email, Laravel and Django application mail, WHMCS and billing system notifications, monitoring alert delivery, and scheduled report distribution. We provide integration guides and code samples for all popular frameworks and platforms, making it straightforward to connect your application to your dedicated SMTP relay.
Plans and Getting Started
SMTP hosting plans are sized by monthly sending volume, starting from 10,000 messages per month for small applications up to millions per month for high-volume operations. Every plan includes a dedicated IP address, DKIM signing, SPF and DMARC configuration assistance, and real-time delivery monitoring.
Deployment takes minutes: select your plan, choose your server location, and pay with cryptocurrency or traditional methods. Your SMTP relay is provisioned automatically with credentials provided immediately. Update your application's SMTP settings and start sending. DNS configuration guides help you set up SPF, DKIM, and DMARC records for your sending domains.
All plans are billed monthly with no long-term commitment. If your sending volume changes, upgrade or downgrade at any time. Additional dedicated IPs can be added to any plan for organizations that want to separate transactional and marketing mail on different IP addresses. Your SMTP infrastructure grows with your needs, with no migration or reconfiguration required.
Why Anubiz Labs
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