AI email rewriting
How to use CarcMail's rewrite feature to improve tone, reduce risk flags, and optimise an existing draft before sending.
AI rewrite is most useful when your spam score is above 2, or when you want to change the tone of a draft without rewriting it from scratch. It preserves your intent while improving the structure and language.
Overview
The AI rewrite feature takes an existing email draft — whether you wrote it yourself or it was AI-generated — and produces an improved version based on instructions you provide.
Unlike generating a new email from scratch, rewriting keeps your original structure and intent intact and makes targeted improvements: reducing spam signals, adjusting tone, shortening for conciseness, or strengthening the call to action.
AI rewriting costs 0.5 credits per use, the same as generation. The original draft is preserved — the rewrite creates a new version you can choose to accept or discard.
When to use rewrite
- Your spam-risk score is above 2 and CarcMail is suggesting you fix specific issues
- You wrote a draft manually and want the AI to polish the language
- The generated draft is close but the tone is slightly off
- The email is too long and you want the AI to trim it while keeping the key points
- The call to action is too soft and you want something more direct
Before you start
- You have a campaign draft ready (either written manually or AI-generated)
- You have reviewed the spam-risk score for the current draft
- You have enough credits for the rewrite (0.5 credits)
Step-by-step
Open your campaign's email draft
Go to Campaigns, select the campaign, and click Edit email. Your current draft will appear in the editor.
Click Rewrite email
Below the editor, click Rewrite email. A panel will appear with optional instructions.
Provide rewrite instructions (optional)
You can give the AI specific instructions for the rewrite. Examples:
- “Make the tone more conversational and less formal.”
- “Shorten to under 100 words.”
- “Remove the second paragraph and make the CTA more direct.”
- “Fix any spam signals without changing the core message.”
If you leave the instructions blank, the AI will focus on general improvements: reducing spam signals, improving flow, and keeping the message concise.
Review the rewrite
The new version appears alongside the original. Read both carefully. If you prefer the rewrite, click Use this version. If not, click Discard to keep the original.
Check the new spam score
After accepting a rewrite, CarcMail automatically re-runs the spam check. Confirm the score has improved before proceeding.
How to confirm it worked
- The email editor shows the updated version after you click “Use this version”
- The spam-risk score re-runs and updates — aim for 0–2
- Your credit balance reflects the 0.5-credit cost for the rewrite
Common issues
| Issue | What to check |
|---|---|
| Rewrite didn’t improve the spam score | The spam issue may be structural (subject line, link density, word choice). Review the specific flags shown in the spam report and try again with more targeted instructions. |
| Rewrite changed the message too much | Use the discard option and try again with more specific instructions about what to keep. |
| Rewrite button is greyed out | Check your credit balance. You need at least 0.5 credits. |
Put it into practice
Try CarcMail — free to start.
Set up your first campaign in 4 minutes. AI drafts, spam-risk checks, follow-up automation, and reply classification — all in one workspace.
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