Messente avatar logo

Delivering every SMS while protecting from spam issues

- 5 MIN READ - 26 Jul 2017

Our SMS API connects with various software which send requests to deliver messages to millions of devices. Yet as no software is perfect, there have been cases where we have received requests to send an unusual number of messages from one account. Typically, this is a clear signal that a client’s system has a glitch and is sending messages that they did not plan on sending. While our goal is to deliver every SMS, we have a system in place to prevent looped messages from occurring.

Before we get to that, story time. Company X (true story, but the company name is confidential) updated some code in their CRM system, which threw the software into a loop, repeating tasks. Within minutes, the CRM automated the SMS API to send hundreds of thousands of messages to their customers. So, what happens when about 5,000 people suddenly receive 50 messages from the same company in an hour, with the same content? Well, customer complaint calls skyrocket

How does the system delineate between wanted and unwanted SMS requests?

Customer feedback is the most common indicator of something like a CRM system looping. But this means it’s too late –the damage has been done. Although these glitches are rare, a prevention system is valuable. As human error is inevitable and software isn’t perfect, the first logical approach is to come up with a type of filter.

We looked at SMS request patterns, and there is a way to identify a glitch.


Based on these factors, we’ve developed some rules for potential spam or glitch indicators.

The hour countdown starts from the first sent message.

Thus, while we’re always working towards delivering every SMS, we’d like to help as a gatekeeper to keep customers out of trouble. Simple, yet valuable, the spam filter has already helped customers avoid unnecessary costs and customer complaints, while notifying system engineers of potential bugs. And everyone gets this service by default.

Margus Sütt

Margus Sütt - Key account manager

Margus works as a business analyst at Messente. Identifying new opportunities and going deep into industries Margus consults Messente's key customers to help their businesses to advance.

An easy way to add more confidentiality - hiding SMS content

15 Aug 2017

In a previous blog, we discussed Flash SMS and how it’s used to ensure confidentiality with SMS messaging. Well, Messente’s API provides two more features that help hide message content:

  • Content no-store
  • Content hashing
Uku Tomikas

Uku Tomikas

Join us to learn how we're helping people #TurnOn2FA

01 Aug 2017

We’ve developed solid APIs for global SMS messaging and two-factor authentication, which are currently part of processes for hundreds of companies and facilitate thousands of transactions every day. Yet we aren’t stopping there. Effectively communicating with customers and securing customer account access online are two aspects of business technology we focus on. While there’s much more to business technology (much, much more,) these are the two areas which we strive to be the best.  

That’s why we keep developing our tools to address evolving needs in the areas which we specialize. 

Yuriy Mikitchenko

Yuriy Mikitchenko

Tools to avoid breaking the budget with SMS

01 Aug 2017

Getting the most bang out of each buck in a marketing communication strategy requires solids budget estimation. Yet when the budget is broken halfway through the month, the questions arise: How did this happen? How have we sent twice as many SMS messages than we should have at this point? Well, this is where the multipart SMS comes into play.

Uku Tomikas

Uku Tomikas

Start sending messages to

for € N/A

Contact us