Analyze email content

Request

Test your email content for spam triggers before sending. Get a deliverability score (0-100, higher is better) with specific issues and suggestions for improvement.

Use this to:

Check emails before sending campaigns
Improve inbox placement rates
Identify problematic content patterns

Rate Limit: Subject to monthly quota (default: 1000 checks/month)

Security

ApiKeyAuth

Bodyapplication/jsonrequired

subjectstring, <= 1000 charactersrequired

Email subject line

Example:"Your Monthly Newsletter"

htmlstring

HTML email content

Example:"<html><body><h1>Hello!</h1><p>Check out our latest updates...</p></body></html>"

textstring

Plain text email body. If omitted when html is provided, a plain-text version is automatically generated from the HTML before sending.

Example:"Hello! Check out our latest updates..."

curl -i -X POST \
  https://api.mailerlogic.net/api/v1/content-score \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: YOUR_API_KEY_HERE' \
  -d '{
    "subject": "Your Monthly Newsletter",
    "html": "<html><body><h1>Hello!</h1><p>Check out our latest updates...</p></body></html>",
    "text": "Hello! Check out our latest updates..."
  }'

Responses

Content analyzed successfully

Bodyapplication/json

statusstring

Enum:"ok""error"

scoreinteger, [ 0 .. 100 ]

Content score (0-100, higher is better)

risk_levelstring

Risk level assessment

Enum:"low""medium""high""critical"

matchesArray of objects

suggestionsArray of strings

Actionable suggestions to improve score

usageobject

Response

{
  "status": "ok",
  "score": 92,
  "risk_level": "low",
  "matches": [
    { … }
  ],
  "suggestions": [
    "Reduce capitalization in subject line",
    "Add a plain-text version of your email"
  ],
  "usage": {
    "used": 145,
    "limit": 1000,
    "period": "monthly"
  }
}