Comprehensive Feature Walkthrough

Engineered for marketing scale.
Architected for developer precision.

From visual drag-and-drop email design to automated VERP bounce processing, dynamic custom merge fields, and tenant-isolated suppression lists, explore every capability powering SaaS Mailer.

Design Studio Audience & Custom Fields AI Suite Campaign Pipeline Embeddable Forms Developer API

Dual-Engine Design Studio

Visual Drag-and-Drop Studio or Advanced Code Editor.

Marketers build stunning campaigns with no-code blocks while developers retain 100% control over raw HTML, CSS, and MJML markup. No stripped styles, no forced compromises.

Modular Drag-and-Drop Block Library

Pre-built Heros, multi-column layouts, responsive images, call-to-action buttons, dividers, and social pills.

Split-Screen Code Editor

Developer-grade code editor with syntax linting, auto-closing tags, and real-time split-screen iframe rendering.

Responsive Viewport Switchers

Toggle between Desktop (100%), Tablet (768px), and Mobile portrait (375px) with automatic horizontal overflow detection.

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newsletter_template.html

Code Editor Visual Editor

// Live Preview Engine • Auto-saves on every keystroke
<section class="mcx-hero-banner">
<h1>Exclusive Offer for {{contact.first_name}}</h1>
<p>Company: {{contact.company}}.</p>
<a href="https://app.com/claim">Claim VIP Access →</a>
</section>

HTML Validated Render: 18ms

Contact Intelligence

Enterprise Custom Fields & Dynamic Merge Tokens.

Store any business data point against contacts. Create Text, Number, Date, or Dropdown fields. SaaS Mailer automatically generates merge tokens like {{contact.job_title}} with configurable fallback values.

Sticky Columns

Density Table Grid

Freeze selection checkboxes and subscriber name/email columns for seamless horizontal navigation.

500px Offcanvas

Profile Slide Drawer

Inspect full subscriber metadata, tag chips, and chronological event logs without leaving the grid.

CSV Wizard

Smart Column Mapping

Upload thousands of contacts with auto-detected columns, duplicate handling, and format sanitization.

Query Engine

Dynamic Segments

Build smart cohorts filtered by tags, custom attribute values, and engagement histories.

Explore Audience Plans →

Tenant Custom Contact Fields

4 Defined Fields

Field Name	Type	Merge Tag	Fallback
Job Title	Text	`{{contact.job_title}}`	Professional
VIP Tier	Dropdown	`{{contact.vip_tier}}`	Member
Lifetime Orders	Number	`{{contact.orders}}`	0
Onboarding Date	Date	`{{contact.onboarding}}`	-

LLM-Powered Growth

AI Email Generation & Contact Enrichment.

Turn ideas into high-converting HTML emails instantly. Our integrated LLM assistant writes copy, adjusts tone, crafts click-worthy subject lines, and enriches raw email addresses with professional intelligence.

Prompt-to-Template Generator

Describe your promotion or newsletter goal. SaaS Mailer generates structured HTML with responsive tables, buttons, and copy.

Subject Line & Tone Optimizer

Score open-rate potential and calibrate tone from casual to executive. Flags spam trigger words that hurt inbox placement.

Automated Contact Enrichment

With one click, resolve company domain, job seniority, and social avatars to personalize B2B campaigns.

Try AI Assistant Free →

AI Subject Line Generator Model: Claude 3.5 / GPT-4o

Input Prompt: "Black Friday VIP early access for SaaS founders with 40% annual discount"

"Early Access: Secure 40% Off Your Enterprise Infrastructure →" 98% Open Score

"Exclusive founder perks inside: 40% off SaaS Mailer" 91% Open Score

"Your 2026 deliverability upgrade is here (Early Bird Access)" 88% Open Score

Ready to Experience SaaS Mailer?

Start your 14-day free trial today. Explore the visual builder, verify your sending domain, and experience true high deliverability.

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Engineered for marketing scale. Architected for developer precision.