Protect your customers with SMS two-factor authentication

From secure logins to transaction approvals, we help protect your systems and users with fast, reliable SMS multi-factor authentication.

Fast. Dependable. Secure.

Let’s protect your users and systems with trusted and compliant MFA solutions.

Easily integrate MFA into your systems

Connect our Multi-Factor Authentication SMS to your apps, CRMs, or platforms in minutes.

Automatically trigger authentication

Automate login, transaction, and password reset verifications with zero manual effort.

Get expert help anytime you need it

24/7 guidance for setup, troubleshooting, and optimization of your MFA workflows.

Built-in compliance and security

Get expert guidance to set up campaigns and stay compliant with TCPA and 10DLC requirements.

Multi-Factor Use Cases

Instant verification, constant protection

Add an extra layer of protection to logins, transactions, methods for authentication, and password resets—keeping accounts safe from unauthorized access.

Verify user logins instantly and securely

Send one-time codes via SMS 2FA, voice, or email to confirm user logins securely.
Reduce the risk of unauthorized access to sensitive accounts.

Secure Transactions

Prevent fraud with extra protection for transactions

Add an extra layer of security to high-value or sensitive transactions.
Authenticate payments or approvals with automated 2FA SMS authentication codes.

Password Resets

Enable safer, smoother password resets

Authenticate password reset requests to prevent account takeovers.
Protect user accounts by verifying identity before making changes.

Remote Work Access for Employees

Facilitate secure remote access

Verify employee identities when accessing internal systems remotely.
Ensure only authorized personnel can log in to sensitive platforms.

Case Studies

What our clients say

“Esendex has been an invaluable partner to us. With a robust platform, high deliverability rates, compliance expertise and reliable support, the Esendex team has been key to our competitiveness in an increasingly complex space.”

I’m a relationship person, and everything we do hinges on that. Our relationship with Esendex goes back over twenty years and is about more than the technology they offer or pricing. I look for partners who are receptive to our ideas and can respond and adapt quickly to changes in the market.

Streamlining processes, simplifying customer orders, managing payments, tracking orders and sending timely customer communications is critical to improving operational efficiency and enhancing customer care. The Esendex solution is now a key element of our technical solution.

How to get started

Start sending SMS and MMS in no time. Our team will guide you through every step—from setting up to scaling up.

Talk to our team

Reach out to our team of experts by filling this form. We’ll walk you through the entire process, ensuring your setup goes smoothly.

Choose the right number for you

Choose a phone number format that best fits your campaign goals and budget. With our expert guidance, you can easily select the right option: short codes, 10 DLC, or toll-free numbers. If you already have a landline for texting, we can host it for you too.

Register your brand

Our expert team offers personalized 1:1 support to help you register your brand and set up your campaigns.

Start sending!

Seamlessly integrate our comprehensive API with your existing tech stack and watch your ROI soar.

Scale with SMS and MMS

Explore how text messaging can help grow other areas of your business—customer support, marketing promotions, notifications, and more.

Let’s get your business buzzing

Spark customer connections in minutes. Discover the full power of our mobile messaging platform—no hidden fees, just real results.