Relayzo Email Marketing PHP Script – Self-Hosted Campaign Platform

Product Overview

Relayzo is a self-hosted email marketing PHP script engineered for organizations that want complete control over their email infrastructure without the constraints of SaaS pricing tiers. Deploy it on your own server, connect your preferred SMTP provider, and send unlimited campaigns to unlimited subscribers — no monthly quotas, no per-contact fees, no artificial ceilings.

Whether you’re an agency managing dozens of client accounts, an e-commerce brand running promotional and transactional sequences, or a B2B team nurturing leads through complex funnels, Relayzo provides the campaign creation, automation, delivery, and analytics tooling to operate at scale.

Key Features

• Unlimited Sending: No subscriber caps, no volume quotas. Your list grows without your costs growing with it.
• Multi-Client Architecture: Create isolated client environments, each with separate lists, templates, delivery servers, and reporting — ideal for agencies and resellers.
• Drag-and-Drop Email Builder: Build mobile-responsive templates visually. No HTML or design skills required.
• Custom Fields & Smart Segmentation: Store unlimited subscriber attributes and segment by demographics, behavior, engagement history, and custom tags.
• Automated Campaign Series: Design multi-step workflows that branch based on opens, clicks, list changes, dates, and custom triggers.
• Intelligent Triggers: Fire emails on subscription events, segment entry/exit, specific dates, campaign interactions, and custom conditions.
• Spintax & Spintags: Rotate content variations automatically for A/B testing and deliverability optimization.
• SMTP Integration: Connect Amazon SES, Mailgun, SendGrid, SparkPost, Postmark, or any SMTP-compatible service.
• Custom Sending Domains: Brand your links and sending domains for trust and deliverability.
• Bounce & Feedback Loop Handling: Automatic processing of bounces, complaints, and suppression events to protect sender reputation.
• Suppression List Management: Global and per-client suppression lists with automatic unsubscription handling.
• Geolocation Tracking: See opens and clicks by country, region, and city — then segment and personalize by location.
• Real-Time Analytics: Opens, clicks, conversions, device breakdown, engagement heatmaps, and campaign comparison reports.
• Activity Logs & Team Roles: Full audit trails and role-based access for collaborative teams.
• Smart Image Manager: Centralized asset library with folder organization and reuse across campaigns.

Benefits

Relayzo eliminates the recurring cost structure that makes scaling email marketing expensive on hosted platforms. By self-hosting, you pay once for the license and control your infrastructure costs directly through your SMTP provider’s pricing — often a fraction of SaaS equivalents at high volumes.

The automation engine reduces manual campaign work: set up a sequence once, and it adapts to each subscriber’s behavior. Segmentation and triggers ensure messages stay relevant, which drives higher engagement and better inbox placement over time.

For agencies, the multi-client model means each client’s data, templates, and sending reputation stay isolated. You can white-label the interface, assign team members per client, and generate client-specific reports without cross-contamination.

Built-in reputation management — bounce processing, feedback loops, suppression lists, and custom domains — protects deliverability as you scale, addressing the most common reason email programs fail.

How It Can Be Used

• Marketing Agencies: Manage 10, 50, or 200 client accounts from one installation with complete data separation and per-client SMTP configuration.
• E-Commerce Brands: Run promotional blasts, abandoned cart sequences, post-purchase flows, and win-back campaigns with segmentation by purchase history and geography.
• B2B Lead Generation: Nurture prospects through multi-touch sequences that respond to engagement signals — advancing hot leads, re-engaging cold ones.
• Publishers & Media Companies: Send high-volume newsletters with spintax variation, geolocation personalization, and detailed engagement analytics.
• SaaS & Membership Platforms: Trigger transactional and lifecycle emails via API or list events, with full template control and delivery tracking.

Technical Requirements

• PHP 8.2 or higher
• MySQL 8.0 or higher (or MariaDB 10.5+)
• Valid SMTP account or email delivery service (Amazon SES, Mailgun, SendGrid, etc.)
• Standard web server (Apache/Nginx) with mod_rewrite support
• SSL certificate recommended for admin panel and tracking domains

Why Choose Relayzo?

Most email platforms force a trade-off: easy-to-use but expensive at scale, or affordable but technically complex. Relayzo sits in the sweet spot — a polished, non-technical interface on top of a self-hosted architecture that puts you in full control of costs, data, and delivery.

The combination of unlimited contacts, multi-client isolation, visual building, behavioral automation, and enterprise-grade reputation tooling makes it viable for solo marketers and agency teams alike. You’re not renting access to your own audience; you own the platform, the data, and the sending infrastructure.

Frequently Asked Questions

What are the server requirements for Relayzo?

Relayzo requires PHP 8.2+, MySQL 8.0+ (or MariaDB 10.5+), and a web server with mod_rewrite. You’ll also need an SMTP account or email delivery service (Amazon SES, Mailgun, SendGrid, SparkPost, Postmark, or any SMTP provider) to send emails.

Can I manage multiple clients from one installation?

Yes. Relayzo’s multi-client architecture lets you create unlimited client accounts, each with completely isolated data — separate lists, templates, campaigns, SMTP settings, suppression lists, and analytics. Team members can be assigned to specific clients with role-based permissions.

Are there any limits on subscribers or email volume?

No. Relayzo imposes no subscriber caps, no monthly sending quotas, and no per-contact fees. Your only volume constraints come from your SMTP provider and server resources.

Do I need coding skills to create email templates?

No. The drag-and-drop builder lets you create responsive, mobile-friendly emails visually. For advanced users, raw HTML editing is also available.

How does Relayzo protect sender reputation and deliverability?

Relayzo includes automatic bounce processing, feedback loop handling (complaint tracking), global and per-client suppression lists, custom sending domains, branded tracking links, and Spintax for content variation — all designed to maintain healthy sender reputation at scale.

Conclusion

Relayzo delivers a complete, self-hosted email marketing platform without the recurring costs and limitations of hosted alternatives. Unlimited subscribers, multi-client management, visual campaign building, behavioral automation, and enterprise-grade deliverability tooling — all running on your infrastructure, under your control. For agencies, high-volume senders, and teams that prioritize data ownership and cost predictability, it’s a practical foundation for sustainable email growth.