Impactful business SMS messaging

Reach customers in seconds with text message alerts, reminders and campaigns

Strengthen the connection between you and your customers! Esendex’s intuitive features ensure that each SMS you send is as impactful & engaging as possible, without technical complexity.

Why use Esendex for business SMS messaging?

Fast, Secure & Reliable Delivery

Esendex only connects directly to all major mobile networks, sending messages through the fastest and highest quality routes available, meaning 90% of messages are processed within 5 seconds.

Personalisation at Scale

Esendex gives you the intuitive tools to send SMS at scale without losing that personal connection! Multiple dynamic fields can be populated with your own customised data, and character count can be reduced with short URL links, so you have the space for more personalised content.

Priority Sending

Send faster when it matters the most! Message prioritisation automatically boosts the send speed of your time-sensitive texts like authentication or customer support messages.

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Explore our most popular SMS features

A better SMS experience for your customer

Remind customers so they never miss a thing

Whether it’s for deliveries, house viewings, payments, doctors’ appointments or reservations, 88% of consumers rely on automated SMS reminders and confirmations to receive important details when they need them most.

  • Reduce booking & appointment no-shows through automated reminders
  • Send highly personalised confirmations to improve customer engagement and loyalty, using your own customised data to populate dynamic fields.
  • Reduce churn & increase revenue with scheduled and timely reminders – e.g. payment collections, medication reminders & subscription renewals.

Send personalised marketing campaigns & make your budget go further

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 create highly personalised marketing messages that capture customer attention
  • Send transactional, marketing, or service type messages to inform customers of upcoming sales and promotions
  • Introduce short URLs to reduce character count, so you can include more personalised content and make your budget go further.

Capture feedback to improve relationships

Send short and engaging SMS surveys after key interactions to improve products, services, and customer experience.

  • Follow-up with a customer following a successful purchase or recent delivery
  • Respond to enquiries quickly or send automated communication so the customer knows when to expect a response
  • Improve customer service with quick turnaround support responses.

Minimise wait times and solve problems fast

Esendex’s direct network connections and online portal mean you can quickly, reliably, and securely communicate with prospects.

  • Hold multiple conversations in real time through our online conversation portal
  • Use SMS message templates to answer common FAQs quickly and consistently
  • Message prioritisation automatically boosts the send speed of your time-sensitive texts

“We’ve seen a big uptick in our numbers, but more importantly, we’re also providing better services and tools to our customers.”

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.

Make your budget go further!

At Esendex we know how important it is to deliver an impactful message at the right time, but equally it’s about making your budget work as hard as possible.

Character counter

Displays the number of characters & message parts used, so you can adjust your content to help minimise messaging costs.

Reduce character count

Short URL links reduce character count, so you use fewer message parts.

Preview your messages

Be confident your messages will look as intended on customers’ mobiles and get it right first time.

Let’s start sending, together.

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.

FAQs

Can we change our SMS marketing message copy freely, or are we locked into strict pre-approved templates?

For your standard marketing blasts, customer service messages and promotional offers, you have complete freedom to write and change your text copy whenever you want. These messages can then be saved as templates for you to reuse with ease. Esendex gives you the flexibility to use dynamic fields within those templates so you can still personalise your messaging.

How do we legally start texting a large database of customer numbers we’ve never messaged before?

To stay compliant with UK regulations (like the ICO and GDPR), you first need to ensure you had explicit, verifiable consent to market to those numbers when you collected them. Strategically, the best way to start without driving up opt-outs is to lead with value. Send a helpful transactional text or account update first, rather than an aggressive sale. Esendex offers two ways to opt out on the UI and API to make it easy for a user to select them, either by replying ‘STOP’ or using a web-based-opt-out.

How many SMS messages per month can a business send before customers get annoyed and opt out?

For most business-to-consumer brands, the sweet spot is 4 to 6 highly targeted messages per month to individual customers. Because text messages land in a very personal space next to family and friends, it’s a fantastic channel to be seen, but over-sending can cause rapid opt-out spikes. The rule of thumb is quality over volume – if a message doesn’t offer immediate value or time-sensitive info, it shouldn’t be sent via SMS.

Is SMS text messaging still an effective way for businesses to reach customers today?

Yes, because it remains the only digital channel that guarantees immediate, universal reach. While consumer attention constantly shifts across new social platforms and messaging apps, SMS is globally recognised as the world’s most used communication channel and a reliable backbone for driving immediate customer actions and critical transactional notifications. We suggest using traditional SMS alongside richer channels – such as RCS and WhatsApp – for the perfect customer experience.

Do we get live human support with Esendex, or do we have to use an automated ticketing queue?

Esendex provides dedicated, localised phone and email support right here in the UK and Ireland. Whilst we believe automated chatbots are fantastic at reducing pressure on internal support resource, we want to ensure you get the right support when you need it most. With Esndex, you get direct access to local tech engineers and account managers who can jump on a call and resolve routing, API and platform issues in real time.

Is Esendex fully compliant with UK GDPR and enterprise data security regulations?

Yes, entirely. Esendex is an enterprise-grade provider with full ISO 27001 certification. We adhere strictly to the UK Data Protection Act, UK GDPR, PECR ISO27001 & Cyber Essentials regulations, all with 24/7 x 365 days monitoring & security scanning to OWASP standards. All customer data is processed and hosted securely within UK-based data centers with full encryption and comprehensive audit trails, meeting the highest standards of corporate compliance officers.

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