SMS for verification and 2FA
Reliable two-factor authentication solutions
Provide an extra level of security in the authentication process to protect your clients and their data.
Instantly verify users and reduce fraud with SMS OTPs and two-factor authentication messaging solutions.
Trusted by 46,000 customers to deliver secure mobile messaging services
The trusted choice for secure user verification
Securing your business and your customers’ data is more important than ever. While the standard username-password combination is vulnerable to hacking and phishing attacks, 2FA adds extra layers of security, significantly reducing the risk of unauthorised access.
With a wide user adoption rate and straightforward implementation, our SMS 2FA solutions help you to quickly verify user identities and reduce the risk of unauthorised access.
Instant OTP delivery
Send one-time passwords (OTP) instantly for quick and secure user verification.
High delivery rates
Ensure your authentication messages reach users consistently, worldwide, every time.
Affordable solutions
With pricing starting from just 2.2p per message, our solutions won’t break the bank.
Scale as you grow
Tailor the solution to your business needs and scale effortlessly as you grow.
Enhance security and verify users with SMS OTP
SMS One-Time Passwords (OTPs) add another valuable layer of security to standard user-generated passwords and login information.
With SMS OTP, users receive a single-use code via text that is completely unique and expires after a short time. Only the user can access this code on their phone, which they then need to input before proceeding.
Unlike static passwords that are vulnerable to breaches and unauthorised access, OTPs are uniquely generated at each login attempt, ensuring that only authorised users gain access.
Reduce fraud with reliable verification methods
Two-factor authentication is a key weapon in the fight against fraud. Using SMS OTP to secure financial transactions is important for your business and your customers – who want reassurance that they are making a legitimate transaction.
We are ISO27001 and FSQS accredited, and take a ‘privacy by design’ approach to product development to help you protect your customers’ data and comply with laws such as GDPR.
Let’s start sending, together.
Discover the full power of our mobile messaging platform.
Messages approved by global carriers for seamless delivery
The timely delivery of authentication messages is critical for the effectiveness of any two-factor authentication system. That’s why we offer carrier-approved message templates to eliminate any carrier filtering or restrictions. This ensures that our communications are delivered to the highest standards, allowing users to complete an authentication procedure quickly and easily.
Recognising the global nature of most businesses, our platform includes automatic translation capabilities, allowing you to communicate in many languages while adhering to international rules.
Customer story
Increasing incoming payments with an automated collections service
Discover how Esendex helped CASH4UNOW reduce collection costs and increase incoming payments with intelligent mobile messaging automations.
Explore more content
Guide
SMS OTP: A guide to sending SMS verification codes
In this guide we explore where SMS verification codes are used and how you can set them up.
Templates
Ready to use text message templates for businesses
All of our templates contain a powerful call-to-action, avoid the use of common SMS spam words – and are optimised for delivery.
Advice
How to choose the best SMS provider for your business
What should you look for in an SMS provider? Check out our guide to help you find the right one for your needs