Smartlead Spintax

Smartlead Spintax Skill

Add deliverability-improving spintax to cold email sequences using Smartlead's syntax, without changing the meaning or tone of the original messaging.

Core Concept

Spintax lets Smartlead randomly pick one option per send, so no two emails are identical. This reduces pattern detection by spam filters and improves deliverability.

Smartlead syntax: {option1|option2|option3}

Each option inside the curly braces is separated by a pipe |. Smartlead picks one at random per email send.

Input Handling

HTML Input (preferred workflow)

Users often paste HTML from Smartlead because copy-pasting plain text loses formatting (spaces, line breaks). When the user provides HTML:

1. Mentally parse the text content from the HTML
2. Add spintax to the text content
3. Return the full HTML with spintax baked in, preserving all HTML tags, <br>, <div>, structure exactly as received
4. Output as a code block so the user can copy-paste straight back into Smartlead

Plain Text Input

If the user pastes plain text, add spintax and return plain text.

The Golden Rule: No Broken Combinations

Every possible combination that Smartlead could randomly assemble MUST read as a natural, grammatically correct, complete sentence. This is the single most important rule.

What "broken combo" means

When spintax options are placed near each other, every possible pairing across adjacent spintax blocks must work together. If option A from block 1 combines with option B from block 2 to form a weird or ungrammatical sentence, that's a broken combo.

How to prevent broken combos

Make each spintax block a self-contained phrase. The options within one block should be interchangeable without depending on what another nearby block picks.

BAD — dependent blocks that can break:

{let me know if|would} {{employeeline}} {would be better to speak to|be a better person to chat with}

Problem: "would" + "would be better to speak to" = "would {{name}} would be better to speak to" — broken.

GOOD — each option is a full standalone phrase:

{let me know if {{employeeline}} would be better to speak to about this?|would {{employeeline}} be a better person to chat with about this?|should I be reaching out to {{employeeline}} about this instead?}

Each option is a complete sentence on its own. No cross-block dependency.

Verification step

After adding spintax, mentally walk through every combination across adjacent blocks. If any pairing sounds off, restructure so each block is independent. When the sentence structure makes independent blocks risky, wrap the entire sentence in one spintax block with full sentence alternatives.

What to Spin

Add 2-3 options per spintax block. Target these elements:

Always spin

• Greetings: {Hey|Hi} — simple, always safe
• Opt-out / unsubscribe lines: These are repetitive across emails and easy to spin without tone change
• CTAs: Different phrasings of the same ask
• Transition words and connectors: "just", "also", "actually", etc.

Spin when natural

• Verb choices: {help|work with}, {built|made}, {handles|manages|tackles}
• Descriptors: {completely free|on us|100% free}
• Sentence-level rephrasings: When a line can be said 2-3 different ways without changing meaning

Never spin

• Smartlead variables: {{first_name}}, {{company_name}}, {{custom_variable}} — leave these exactly as-is
• Signature placeholders: %signature% — never touch
• Specific data points: Numbers, stats, brand names, product names, pricing
• Technical terms or product descriptions that need to be precise