Hostinger Reach API for contact management, segmentation

Hostinger Reach (Email Marketing)

The Reach API provides email marketing capabilities — managing contacts, creating segments for targeted campaigns, and working with sender profiles.

Table of Contents

• Core Concepts
• Common Patterns
• API Reference
• Best Practices
• Troubleshooting
• References

Core Concepts

Contacts

Contacts are email recipients in your marketing system. Each contact has basic information (name, email, surname) and a subscription status. If double opt-in is enabled, new contacts start with a pending status and receive a confirmation email.

Segments

Segments group contacts based on specific criteria (email, name, subscription status, engagement metrics, etc.). Segments support complex filtering with operators like equals, contains, gte, lte, opened, clicked, etc.

Profiles

Sender profiles represent the email identity used to send campaigns. Each profile has basic information and is associated with your account.

Contact Groups

Groups are a way to organize contacts (deprecated in favor of segments).

Subscription Status

Contacts can have different subscription statuses that determine whether they receive emails. Status can be used as a filter when listing contacts.

Common Patterns

Create and Manage Contacts

# Create a new contact (direct)
curl -X POST "https://developers.hostinger.com/api/reach/v1/contacts" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "[email protected]",
    "name": "John",
    "surname": "Doe",
    "phone": "+15551234567",
    "note": "Met at conference"
  }'

# Create a new contact (scoped to a specific sender profile)
curl -X POST "https://developers.hostinger.com/api/reach/v1/profiles/{profileUuid}/contacts" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "[email protected]",
    "name": "John",
    "surname": "Doe"
  }'

# List contacts (paginated)
curl -X GET "https://developers.hostinger.com/api/reach/v1/contacts?page=1" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

# Filter contacts by subscription status
curl -X GET "https://developers.hostinger.com/api/reach/v1/contacts?subscription_status=active" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

# List contact groups
curl -X GET "https://developers.hostinger.com/api/reach/v1/contacts/groups" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

# Delete a contact
curl -X DELETE "https://developers.hostinger.com/api/reach/v1/contacts/{uuid}" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

Python SDK:

from hostinger_api import Hostinger

client = Hostinger(api_token="YOUR_API_TOKEN")

# List contacts
contacts = client.reach.contacts.list(page=1)
for contact in contacts:
    print(f"{contact.name} <{contact.email}>")

TypeScript SDK:

import { Hostinger } from "hostinger-api-sdk";

const client = new Hostinger({ apiToken: "YOUR_API_TOKEN" });

const contacts = await client.reach.contacts.list({ page: 1 });
for (const contact of contacts) {
  console.log(`${contact.name} <${contact.email}>`);
}

PHP SDK:

use Hostinger\Api\HostingerApi;

$client = new HostingerApi('YOUR_API_TOKEN');

$contacts = $client->reach->contacts->list(['page' => 1]);
foreach ($contacts as $contact) {
    echo "{$contact->name} <{$contact->email}>\n";
}

Work with Segments

# List all segments
curl -X GET "https://developers.hostinger.com/api/reach/v1/segmentation/segments" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

# Create a segment (e.g., engaged subscribers who opened emails)
curl -X POST "https://developers.hostinger.com/api/reach/v1/segmentation/segments" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Engaged Subscribers",
    "logic": "and",
    "conditions": [
      {
        "field": "subscription_status",
        "operator": "equals",
        "value": "active"
      },
      {
        "field": "email_engagement",
        "operator": "opened"
      }
    ]
  }'

# Get segment details
curl -X GET "https://developers.hostinger.com/api/reach/v1/segmentation/segments/{segmentUuid}" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

# List contacts in a segment (paginated)
curl -X GET "https://developers.hostinger.com/api/reach/v1/segmentation/segments/{segmentUuid}/contacts?page=1&per_page=50" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

Manage Profiles

# List all sender profiles
curl -X GET "https://developers.hostinger.com/api/reach/v1/profiles" \
  -H "Authorization: Bearer $HOSTINGER_API_TOKEN"

API Reference

Contacts

Method	Endpoint	Description
GET	/api/reach/v1/contacts	List contacts (paginated, filterable)
POST	/api/reach/v1/contacts	Create a contact (direct)
POST	/api/reach/v1/profiles/{profileUuid}/contacts	Create a contact scoped to a sender profile
GET	/api/reach/v1/contacts/groups	List contact groups
DELETE	/api/reach/v1/contacts/{uuid}	Delete a contact

Segments

Method	Endpoint	Description
GET	/api/reach/v1/segmentation/segments	List all segments
POST	/api/reach/v1/segmentation/segments	Create a new segment
GET	/api/reach/v1/segmentation/segments/{segmentUuid}	Get segment details
GET	/api/reach/v1/segmentation/segments/{segmentUuid}/contacts	List segment contacts

Profiles

Method	Endpoint	Description
GET	/api/reach/v1/profiles	List sender profiles

Contact Query Parameters

Parameter	Description
page	Page number
group_uuid	Filter by group UUID
subscription_status	Filter by subscription status

Segment Condition Operators

Operator	Description
equals / not_equals	Exact match
contains / not_contains	Partial match
gte / lte	Greater/less than or equal
exists	Field has a value
within_last_days / not_within_last_days	Date range
older_than_days	Older than N days
opened / not_opened	Email open engagement
clicked / not_clicked	Email click engagement
bounced / not_bounced	Bounce status
delivered / not_delivered	Delivery status
unsubscribed / not_unsubscribed	Unsubscribe status

Best Practices

Contact Management

• Use the direct POST /contacts endpoint for general contact creation; use POST /profiles/{profileUuid}/contacts when the contact must be tied to a specific sender profile
• Prefer segments over contact groups for organizing contacts — groups are legacy
• Enable double opt-in for compliance with email marketing regulations (GDPR, CAN-SPAM)
• Clean your contact list regularly by removing bounced and unsubscribed contacts

Segmentation

• Use and logic for narrow, precise targeting
• Use or logic for broader audience reach
• Combine engagement operators (opened, clicked) with time-based operators for re-engagement campaigns
• Create segments before campaigns to preview audience size

Profiles

• Verify sender profiles to improve deliverability
• Use consistent sender identity across campaigns

Troubleshooting

Contact Not Receiving Emails

• Check subscription status — contact may be unsubscribed or pending
• If double opt-in is enabled, contact must confirm their email first
• Verify the contact's email address is valid and not bouncing

Segment Returns No Contacts

• Verify conditions and operators are correct
• Check that logic field (and/or) matches your intent
• Ensure contacts exist that match all/any conditions

422 Validation Error on Contact Creation

• Missing required fields (email is required)
• Invalid email format
• Duplicate email address in the system

References

• Hostinger API Documentation
• Hostinger API Changelog
• Python SDK
• TypeScript SDK
• PHP SDK
• CLI Tool