Check Email Copy for Spam Triggers

POST

content-spam-check

curl --request POST \
  --url https://api.orbisearch.com/v1/content-spam-check \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "content": "ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!",
  "subject": "URGENT: claim your spot before midnight"
}
'

import requests

url = "https://api.orbisearch.com/v1/content-spam-check"

payload = {
    "content": "ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!",
    "subject": "URGENT: claim your spot before midnight"
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    content: 'ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!',
    subject: 'URGENT: claim your spot before midnight'
  })
};

fetch('https://api.orbisearch.com/v1/content-spam-check', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.orbisearch.com/v1/content-spam-check",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'content' => 'ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!',
    'subject' => 'URGENT: claim your spot before midnight'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.orbisearch.com/v1/content-spam-check"

	payload := strings.NewReader("{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.orbisearch.com/v1/content-spam-check")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.orbisearch.com/v1/content-spam-check")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}"

response = http.request(request)
puts response.read_body

{
  "rules": [
    {
      "description": "Plain-text message focused on large sums of money",
      "name": "MONEY_NOHTML",
      "points": 2.5
    },
    {
      "description": "Talks about 'acting now' with capitals",
      "name": "ACT_NOW_CAPS",
      "points": 0.1
    }
  ],
  "score": 2.6,
  "threshold": 5,
  "verdict": "borderline"
}

{
  "detail": "API key required in X-API-Key header"
}

{
  "detail": "Invalid request body field 'content': String should have at least 1 character.",
  "errors": [
    {
      "loc": "body.content",
      "msg": "Invalid request body field 'content': String should have at least 1 character.",
      "type": "string_too_short"
    }
  ]
}

{
  "detail": "You've reached today's limit of 100 checks. Try again tomorrow.",
  "code": "daily_quota_exceeded"
}

{
  "detail": "Spam checker temporarily unavailable. Please try again.",
  "code": "engine_unavailable"
}

Analyse the plain text of a cold email for the content signals SpamAssassin flags — the engine many SMB mailboxes, hosting providers, IT shops, and education and government domains run on inbound mail. The response gives the overall score, the spam threshold (default 5.0), a verdict (clean, borderline, or likely_flagged), and the rules that fired with their points and plain-English descriptions. SpamAssassin reacts to phrasing, not strategy. To lower a score, reword the phrases behind the highest-points rules and re-check — you keep the offer, you change the wording. It’s one tool in your deliverability belt: a clean result isn’t a guarantee of inbox placement, but it’s a fast way to reverse-engineer what content filters react to before you send.

Pricing and limits

Free — no credits are deducted. Usage is bounded by 100 checks per day per account, shared with the in-dashboard spam checker (both draw down the same pool), plus the standard 20 requests per second per API key. Both limits return 429; the code field (daily_quota_exceeded vs rate_limited) and the Retry-After header tell them apart. See errors for the full reference.

Authorizations

X-API-Key

string

header

required

API key for authentication

Body

application/json

Email copy to analyse for spam-filter triggers.

content

string

required

Plain-text email body to analyse. Cold email is plain text in practice; HTML is not required.

Required string length: 1 - 10000

subject

string | null

Optional subject line. When provided, it is included in the analysis.

Maximum string length: 255

Response

Successful Response

SpamAssassin analysis of the submitted email copy.

score

number

required

Total SpamAssassin score for the copy. Higher means more spam-like.

Example:

2.6

threshold

number

required

Score at or above which mail is treated as spam (SpamAssassin default is 5.0).

Example:

5

verdict

string

required

Overall assessment: clean (well below threshold), borderline (approaching threshold), or likely_flagged (at or above threshold).

Example:

"borderline"

rules

SpamRule · object[]

required

Content rules that fired, highest-scoring first. Empty when nothing triggered.

Show child attributes

Bulk Lookup Job Results

Check Credit Balance

Check Email Copy for Spam Triggers

curl --request POST \
  --url https://api.orbisearch.com/v1/content-spam-check \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "content": "ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!",
  "subject": "URGENT: claim your spot before midnight"
}
'

import requests

url = "https://api.orbisearch.com/v1/content-spam-check"

payload = {
    "content": "ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!",
    "subject": "URGENT: claim your spot before midnight"
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    content: 'ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!',
    subject: 'URGENT: claim your spot before midnight'
  })
};

fetch('https://api.orbisearch.com/v1/content-spam-check', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.orbisearch.com/v1/content-spam-check",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'content' => 'ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!',
    'subject' => 'URGENT: claim your spot before midnight'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.orbisearch.com/v1/content-spam-check"

	payload := strings.NewReader("{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.orbisearch.com/v1/content-spam-check")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.orbisearch.com/v1/content-spam-check")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"content\": \"ACT NOW!! This EXCLUSIVE offer expires TONIGHT. Guaranteed to DOUBLE your revenue and make you $50,000 fast. Click here to claim your FREE spot!!!\",\n  \"subject\": \"URGENT: claim your spot before midnight\"\n}"

response = http.request(request)
puts response.read_body

{
  "rules": [
    {
      "description": "Plain-text message focused on large sums of money",
      "name": "MONEY_NOHTML",
      "points": 2.5
    },
    {
      "description": "Talks about 'acting now' with capitals",
      "name": "ACT_NOW_CAPS",
      "points": 0.1
    }
  ],
  "score": 2.6,
  "threshold": 5,
  "verdict": "borderline"
}

{
  "detail": "API key required in X-API-Key header"
}

{
  "detail": "Invalid request body field 'content': String should have at least 1 character.",
  "errors": [
    {
      "loc": "body.content",
      "msg": "Invalid request body field 'content': String should have at least 1 character.",
      "type": "string_too_short"
    }
  ]
}

{
  "detail": "You've reached today's limit of 100 checks. Try again tomorrow.",
  "code": "daily_quota_exceeded"
}

{
  "detail": "Spam checker temporarily unavailable. Please try again.",
  "code": "engine_unavailable"
}

Email validation

Email finder

Deliverability

Account

Reference

Check Email Copy for Spam Triggers

Pricing and limits

Authorizations

Body

Response

​Pricing and limits

Authorizations

Body

Response

Pricing and limits