import { MailChannels } from "mailchannels-sdk";

const { MAILCHANNELS_API_KEY, RECIPIENT } = process.env;
if (!MAILCHANNELS_API_KEY) throw new Error("Set MAILCHANNELS_API_KEY before running");
if (!RECIPIENT) throw new Error("Set RECIPIENT to the email address to suppress");

const mailchannels = new MailChannels(MAILCHANNELS_API_KEY);

const { success, error } = await mailchannels.suppressions.create({
  entries: [{ recipient: RECIPIENT }],
});

if (!success) {
  console.error("Create suppression failed:", error);
  process.exit(1);
}
console.log("Suppression created");

import os
import sys

import mailchannels

if not os.environ.get("MAILCHANNELS_API_KEY"):
    sys.exit("Set MAILCHANNELS_API_KEY (parent or sub-account) before running")

recipient = os.environ.get("RECIPIENT")
if not recipient:
    sys.exit("Set RECIPIENT to the email address to suppress")

response = mailchannels.Suppressions.create([{"recipient": recipient}])

print(response)

<?php

require_once __DIR__ . '/vendor/autoload.php';

use MailChannels\Client;

$api_key   = getenv('MAILCHANNELS_API_KEY') or exit("Error: MAILCHANNELS_API_KEY is not set\n");
$recipient = getenv('RECIPIENT') or exit("Error: RECIPIENT is not set\n");

$client = new Client(apiKey: $api_key);

$response = $client->suppressions->create([['recipient' => $recipient]]);

print_r($response->toArray());

curl --request POST \
  --url https://api.mailchannels.net/tx/v1/suppression-list \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "suppression_entries": [
    {
      "recipient": "<string>",
      "notes": "<string>",
      "suppression_types": []
    }
  ],
  "add_to_sub_accounts": false
}
'

{
  "errors": [
    "<string>"
  ]
}