How AI Content Rotation Works

Spam filters use comparative analysis: if 1000 emails have almost the same text and similar subjects, it is a template, and it falls into the "mass mailing" category. Spyntax {a|b} makes 10-50 unique variations, AI-rewrite — thousands.

How it Works

In Postigo, AI-rewrite is triggered every N emails (setting from 1 to unlimited, default is 100). When triggered, the platform sends your base prompt + current subject/body to the AI model — the output is a rewritten version that differs in sentence structure, wording, and sometimes even comparisons.

How to Set Up

1. Open campaign creation/editing, switch to the "Recipients and Settings" tab
2. Enable the "Enable AI Rotation" checkbox
3. Set the rotation interval — for cold mailings, 50-200 emails is optimal
4. Write a basic prompt: what are we selling, what tone, what limitations. For example: "I'm selling SaaS for analytics, friendly tone, no technical terms, no promises of growth in numbers"

Using Your Own OpenAI Key

By default, AI works through built-in Postigo credits (Gemini 2.5 Flash). If you have an OpenAI API key, you can connect it in your profile settings. Postigo AI credits are not charged then, payment goes directly to OpenAI.

The advantage of your own key: control over the model (GPT-4 vs GPT-4 Turbo vs GPT-3.5). The advantage of built-in Postigo AI credits: predictable cost, no need to create an OpenAI account.

When Not to Use AI-rewrite

• Small mailings up to 100 emails — spyntax is enough, AI is redundant
• Emails with critical details (prices, exact dates) — AI may rephrase unsuccessfully
• Very short emails (1-2 sentences) — there is nothing to rewrite without losing meaning

Quality control

The "AI" button next to the subject field in the campaign editor generates one version of the subject right now — see how it sounds. If you like it, insert it into the field, if not, click again for the next option. This way, you can manually find a suitable style before launching.