CHANNELS
Impactful Business SMS messaging
Strengthen the connection between you and your customers with personalised texts that build engaged customer conversation, improve customer relationships and increase revenue.

What makes our business SMS messaging different?
Direct Connections
We only have direct connections to major mobile networks; messages are sent using the fastest and highest quality routes, which is why 90% of messages are delivered within 5 seconds.
Personalisation at Scale
Upload your own customised data, short URLs, and dynamic fields to scale SMS messaging.
Priority Sending
Send faster when it matters the most. Message prioritisation automatically boosts the send speed of your time-sensitive texts like authentication or a customer support messages.
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A better SMS experience for your customer

Remind customers so they never miss a thing
Whether it’s for house viewings, delivery, payments, doctors’ appointments or reservations, 88% of consumers rely on automated SMS reminders and confirmations.
- Send personalised confirmations
- Reduce no-shows and increase debt collection
- Automated texts at scale and save time
- Schedule messages for the right moment
- Ensuring customers have important details when they need them.
Send marketing campaigns that increase ROI
SMS cuts through busy inboxes and with open rates up to 98%, it’s almost guaranteed to be seen. Enhance your promotions, events, and campaigns by getting in front of customers at the right time.
- Use dynamic fields and customised data to personalise texts
- Send transactional, marketing or service type messages
- Text-to-landline sends SMS and reads out the messages if you only have a contact’s landline.
- Short URL links reduce character count, so more personalised content can be included.


Capture feedback to improve relationships
Send short and engaging SMS surveys after key interactions such as a purchase, enquiry or support case.
It’s a quick and convenient way to gather both quantitative and qualitative insights that help you improve your products, services and customer experience.
Minimise wait times and solve problems fast
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- Hold multiple conversations in real time through our online conversation portal
- Use SMS message templates to answer common FAQs quickly and consistently
- Fast, reliable and secure message delivery
- Message prioritisation automatically boosts the send speed of your time-sensitive texts
- Send globally to more than 200 countries in seconds.


Build trust with compliant messages
Whether it’s for appointments, house viewings, delivery or reservations, 88% of consumers rely on automated SMS reminders and confirmations.
- Smooth sender ID registration process
- Automatically restrict messages to being delivered within pre-determined hours
- Reporting of failed sends due to non-compliance or banned words
- Opt out
Make your budget go further
“We’ve seen a big uptick in our numbers, but more importantly, we’re also providing better services and tools to our customers.”
Gareth Hall – Senior Collections Manager, Debt Managers

Esendex, your reliable business messaging partner
Trusted by thousands of businesses, Esendex delivers the scale, experience, and support needed to power reliable SMS communication at every stage of the customer journey.
20+ years experience
We’ve been helping businesses send text messages to customers for over two decades. Our team brings in-depth knowledge and technical expertise to every solution we deliver..
46,000+ customers
Organisations of all types and sizes trust Esendex to power their communications. From fast-moving retailers to highly regulated sectors, we support a wide range of messaging needs.
5B+ messages per year
Our platform is built for high performance at scale. Every year, we deliver billions of SMS messages with the speed, security and reliability our customers rely on.
Security and compliance
We’re ISO 27001 certified and fully GDPR compliant. From data protection to message delivery, security is at the core of everything we do.
Global reach
Send messages worldwide with confidence. Our direct carrier connections and in-country knowledge ensure reliable delivery across borders.
Flexible integration
Use our intuitive web platform or connect via API. Whether you’re sending one-off messages or building complex automations, we give you the flexibility to work your way.
Let’s start sending, together.
Discover the full power of our mobile messaging platform.
Messaging solutions for your sector
From customer updates to appointment reminders, our powerful messaging platform is helping businesses across sectors communicate more effectively. See how it’s making an impact in businesses like yours:
Send order confirmations, delivery updates, and time-sensitive offers that customers actually see.
With open rates up to 98%, SMS helps retailers cut through the noise and drive real results — from cart recovery to loyalty program engagement.

Deliver secure, time-critical messages like fraud alerts, one-time passwords, and appointment reminders.
SMS supports compliance needs while helping reduce missed communications and inbound call volume.
Reduce no-shows and improve patient satisfaction with automated appointment reminders, test result notifications, and care follow-ups.
SMS helps healthcare providers reach patients quickly and respectfully.
Built by developers, for developers. Integrate our APIs for simple, real-time communication
Use our API documentation to integrate Esendex’ services into your systems within minutes. Here’s how to send an SMS:
// The POST v1/messages endpoint allows you to send a message to a single contact in one request.
// The message can also be sent via different channels; including SMS, Whatsapp and RCS.
curl -X POST 'https://api.esendex.co.uk/v2/messages' -H 'X-Api-Key: {{your-key-here}}' -H 'Content-Type: application/json' -d
{
"accountReference": "EXxxxxxxxx",
"name": "name",
"characterSet": "characterSet",
"channel": "channel",
"from": "from",
"validity": "2025-07-30T09:38:04.4517739+00:00",
"messageType": "messageType",
"body": {
"text": "text",
"templateId": "templateId"
},
"recipients": [
{
"msisdn": "msisdn",
"variables": {},
"metaData": {}
}
],
"addressBook": {
"contacts": [
{
"id": "id"
}
]
},
"metaData": {}
}
No commitment, 30 day free trial
Begin your journey by opening a free Esendex account today and get 100 SMS credits.
Ready? Set? Go!
Learn how to get your service up and running with our simple quickstart guides.
Let’s start sending, together.
Discover the full power of our mobile messaging platform.
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