Create powerful campaigns with A/B subject testing, multi-mode content (HTML, Plain Text, Both), 80+ dynamic merge tags, SMTP rotation, beast mode parallel sending, and full anti-fingerprint encoding — all in one editor with 60+ configurable fields.
Describe your email, choose a tone and language, and let AI generate multiple unique variations with fully styled HTML templates, brand-matched colors, merge tag integration, CTA buttons, and QR codes. Supports 26 languages and up to 10 variations per generation.
Drag-and-drop block editor with 14 block types — text, heading, image, button, columns, list, quote, social, video, divider, spacer, signature, custom HTML, and footer. Live preview with desktop/mobile toggle, merge tag palette, and template save/load system.
Connect via SMTP Relay, Direct-to-MX, OWA/Exchange, Microsoft Graph API, Gmail API, AWS SES, SendGrid, or Mailgun. Each with DKIM/S/MIME signing, SOCKS proxy support, per-account rate limits, credential encryption, and one-click connection testing.
Real-time mission control for active campaigns. Raw Output mode shows live color-coded logs of every SMTP command and response. Smart View provides AI-powered error diagnosis with severity badges, pattern detection, and specific fix suggestions. Pause, resume, or stop at any time.
Generate branded HTML attachments with AI — security alerts, invoices, notifications, and more. Auto brand detection matches official colors and logos. Output in 6 formats: HTML, EML, MSG, DOCX, PDF, SVG. Built-in encoding engine makes every file structurally unique.
No two emails share the same fingerprint. Invisible garbage spans, CSS class randomization, random data attributes, unique document IDs, and invisible CSS rules — all applied per-send in real-time.
Connect any email provider. Each engine is purpose-built with its own connection handling, authentication flow, and error recovery.
Universal SMTP — works with any mail server. Gmail, Outlook, Zoho, custom relays. SSL/TLS/STARTTLS with DKIM & S/MIME signing.
Deliver directly to recipient's mail server via MX lookup on port 25. No SMTP credentials needed — unlimited concurrency.
Exchange Web Services SOAP API with Basic auth. Works with on-premise and hosted Exchange servers with custom headers.
Microsoft 365 via Graph API with OAuth2 refresh token flow. For modern M365 tenants that block legacy authentication.
Google Gmail API with OAuth2. Required since Google deprecated app passwords. Full tracking and merge tag support.
Amazon Simple Email Service v2 API — cheapest at scale ($0.10/1,000 emails). Multi-region support with IAM authentication.
Twilio SendGrid v3 API — industry standard processing billions of emails monthly. High deliverability infrastructure.
Mailgun REST API with EU/US region support. Powerful routing, email validation, and webhook-based tracking built in.
Every engine is fully integrated. Here's what each one supports at a glance.
| Feature | SMTP Relay | Direct MX | OWA | Graph | Gmail | AWS SES | SendGrid | Mailgun |
|---|---|---|---|---|---|---|---|---|
| Beast Mode Concurrency | 30 | Unlimited | 15 | 10 | 10 | 20 | 20 | 15 |
| DKIM Signing | ✓ | ✓ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
| S/MIME Signing | ✓ | ✓ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
| SOCKS Proxy | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Account Rotation | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Retry with Backoff | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Per-Account Rate Limits | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Custom Headers | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Anti-Fingerprint Encoding | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Spam Word Obfuscation | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Image Recompression | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| EXIF Injection | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 80+ Merge Tags | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Attachment Conversion | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| CC/BCC Support | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Credentials Required | User/Pass | None | User/Pass | OAuth2 | OAuth2 | Access Key | API Key | API Key |
| Protocol | SMTP | SMTP :25 | EWS SOAP | REST API | REST API | SES v2 API | REST v3 | REST API |
| Cost at Scale | Varies | Free | License | M365 License | Free Tier | $0.10/1K | Tiered | Tiered |
All engines support AES-256 encrypted credential storage, test connection, and connection health monitoring.
"TITAN SENDER's anti-fingerprint engine is a game changer. Every email is structurally unique — our inbox placement rate went from 60% to 94% after switching."
"8 send engines in one tool — I use SMTP Relay for personal outreach and AWS SES for bulk campaigns. The account rotation and beast mode make it incredibly efficient."
"The AI Email Writer generates genuinely unique variations, not recycled templates. Combined with 80+ merge tags and spam word obfuscation, deliverability is outstanding."