Follow three steps: 1) Add a Send Account — go to SMTP Accounts and connect your email provider. Choose from 8 methods: SMTP Relay, Direct-to-MX, OWA/Exchange, Microsoft Graph, Gmail API, AWS SES, SendGrid, or Mailgun. 2) Import Contacts — navigate to Contacts page and import your recipient list via CSV file or paste emails directly. 3) Create a Campaign — go to Campaigns, compose your email, select your contact list, choose your send account, and launch.

TITAN SENDER runs as a desktop application: Windows 10/11 (64-bit), 4 GB RAM minimum (8 GB recommended), internet connection for license activation and AI features, Port 25 open for Direct-to-MX mode (check with your hosting provider).

On first launch, you'll see the activation screen. Enter your license key to activate. Your license is tied to your machine ID. If you need to transfer your license to another machine, contact support.

TITAN SENDER supports 8 sending methods across two categories. Server-Based: SMTP Relay (any standard SMTP server with SSL/TLS/STARTTLS, DKIM and S/MIME signing), Direct-to-MX (direct delivery via MX lookup on port 25 — no SMTP server needed), OWA/Exchange (EWS SOAP API), Microsoft Graph API (OAuth2 with refresh token), Gmail API (OAuth2 — required since Google disabled app passwords). API Providers: AWS SES ($0.10 per 1K emails), SendGrid (v3 API), Mailgun (REST API with EU region support). All methods support automatic retry with exponential backoff, account rotation, SOCKS4/5 proxy routing, and full header customization.

Direct-to-MX sends emails directly to the recipient's mail server by looking up their domain's MX records. No intermediary SMTP server is needed. Requirements: Port 25 must be open on your server/VPS, properly configured SPF, DKIM, and DMARC records, and a clean IP address (not blacklisted). Without DKIM signing, recipients will see authentication failure warnings.

When you have multiple send accounts, enable account rotation in your campaign's Delivery tab. Select multiple SMTP accounts, check "Enable rotation", and set "Rotate every N emails" (default: 100). The engine cycles through accounts, distributing the sending load to reduce rate-limiting risk and maintain sender reputation.

DKIM signs every outgoing email with your domain's private key. Generate a key pair with OpenSSL, add a TXT DNS record at selector._domainkey.yourdomain.com, then configure in TITAN SENDER under SMTP Accounts → DKIM Signing. Works with SMTP Relay and Direct-to-MX. DKIM is critical for Direct-to-MX to avoid authentication warnings. Private keys are stored with AES-256 encryption locally.

S/MIME adds a digital signature showing the secure lock icon in email clients. Obtain a certificate (.p12/.pfx) from a CA like Comodo, DigiCert, or Sectigo. Configure in SMTP Accounts → S/MIME Digital Signing. Works with SMTP Relay and Direct-to-MX. S/MIME and DKIM serve different purposes — DKIM authenticates the domain for spam filters, S/MIME authenticates the sender for email clients. Use both together for best results.

Two methods: CSV Import (select file, map columns to fields like email, first_name, last_name, company, and custom fields, choose target list) or Paste Emails (paste addresses one per line, choose target list). Auto-deduplication on import with email format validation.

Yes. Built-in DNS-based email verification runs locally with no external API cost. Checks include MX record lookup, syntax validation, disposable domain detection, and role-based address detection. Results labeled Valid, Invalid, Risky, or Unknown. Parallel DNS lookups at 50 concurrent for speed — no IP blocking risk since it's DNS-only.

The Campaign Editor has three tabs: Compose (campaign name, A/B subject lines, HTML/Plain Text/Both body modes, merge tags), Delivery (send mode, account selection and rotation, speed settings with delay/batch/cooldown, anti-fingerprint encoding options, custom headers, tracking), and Recipients (select contact lists, preview count). Over 60 configurable fields in total.

Control sending speed in the Delivery tab: Delay (random between min/max seconds per email — default 1-3s), Batch Size (emails per batch — default 500), Batch Cooldown (pause between batches — default 10s). Beast Mode default is 1-3s delay, 500 batch, 10s cooldown for aggressive high-volume sending. Configure conservatively (5-15s delay, 50-100 batch, 30-60s cooldown) if deliverability is a concern.

Three tools powered by AI: AI Email Writer (describe your email, choose tone from 8 options, language from 26, format HTML/Plain Text, generate up to 10 unique variations with brand-matched styling and merge tag integration), AI Attachment Generator (create branded HTML attachments in 6 formats with auto brand detection and encoding), and AI Spam Checker & Fixer (analyzes content for spam triggers and provides AI-generated fixes).

Six output formats: HTML (standard email template with advanced encoding support), EML (complete email file with authentic headers — opens in Outlook, Gmail, Thunderbird), MSG (Microsoft Outlook binary format), DOCX (Word-compatible HTML document), PDF (compact HTML optimized for PDF rendering), SVG (SVG file with embedded redirect). Each format supports encoding for unique file structure per-send.

Every email is processed through 6 randomization operations: invisible garbage spans injected between content, CSS class/ID names rewritten to random strings, random data-* attributes added, unique document ID per send, metadata/comments stripped, and invisible CSS rules injected. Additionally, spam words use ZWNJ characters, soft hyphens, and homoglyphs. Images are recompressed at random quality with fake EXIF metadata. Attachment filenames get random hex suffixes. No two emails share the same fingerprint.

Beast Mode enables parallel sending with configurable concurrency using Promise.allSettled with safe caps per engine: SMTP Relay (30), Direct MX (unlimited — different server per recipient), OWA/Exchange (15), Microsoft Graph (10), Gmail API (10), AWS SES (20), SendGrid (20), Mailgun (15). If you request higher concurrency than the engine cap, it auto-reduces to the safe limit.

DNS Authentication: Set up SPF, DKIM (configure in SMTP account settings), and DMARC for your domain. Sending Practices: Start slow and ramp up volume, clean your list by removing invalid/bounced emails, use merge tags for personalization, use Both content mode for multipart emails, include an unsubscribe link. Content: Spam word protection is always active (hundreds of trigger words auto-handled), keep HTML clean, balance text-to-image ratio.

All data stays on your machine. 13 sensitive fields (passwords, API keys, secrets, refresh tokens, DKIM private keys, S/MIME passwords) encrypted at rest with AES-256. All API communication uses AES-256-GCM encryption with HMAC-SHA256 request signing and response verification. License bound to machine ID via HMAC hash. JWT tokens with 1-hour access / 30-day refresh TTL. Encrypted backups for data export.

One-click encrypted backup exports all data as a .tbk file — campaigns, contacts, SMTP accounts, templates, AI attachments, analytics, and settings. Import from a previously exported backup to restore all data. Backups are AES-256 encrypted. Factory reset option available with confirmation dialog.

80+ dynamic merge tags across categories: Contact fields (Email, FirstName, LastName, Company, Title, etc.), Domain variants (DomainName, FullDomain, DomainLogo), Encoded email (Base64, MD5, SHA256, URL encoded), Censored email (5 masking patterns), Campaign/sender fields, Date & time (16 tags with offset support like {Date+7}), Random data generators (names, companies, cities, job titles, addresses, phone numbers, amounts, IPs), Random string generators (configurable length), and Custom fields from CSV imports. All tags work in subject lines, body, headers, attachments, and CC/BCC fields.