What are Smart Senders?

Smart Senders are an intelligent system that help your SMS messages reach their destination. It ensures each message is sent from a compliant Sender ID, based on carrier rules in each country.

If your message comes from a non-compliant Sender ID, it may be blocked by the carrier — which is why Smart Senders matter.

How Smart Senders help you

Global sending is much easier. You can set up compliant senders for multiple countries with one click.
Failed messages are reduced. When you use carrier-approved Sender IDs, you reduce the risk of your messages failing or being blocked.
There is full control and transparency. You can choose which Sender ID your recipients see, giving you more control and confidence.

Where can you access Smart Senders?

Smart Senders is currently in BETA, which means that not all customers have access yet. If you'd like early access please get in touch with support.

Smart Senders is visible for both main accounts and subaccounts, you can view it via the Manage Senders menu.

Both main account owners and subaccounts can set and configure Smart Senders. Please note, if a main account holder or subaccount changes your Smart Senders — these changes will be reflected across every single linked account.

You cannot set different Smart Senders for each subaccount.

How to use Smart Senders in the Dashboard

To manage Smart Senders:

Go to Sender IDs > Manage Senders
Select the Smart Senders tab

You’ll see a list of countries based on your onboarding preferences or Global Sending setup. For each country, Smart Senders checks:

The local sending regulations
The Sender IDs you’ve registered or verified.

As a result, you’ll only see compliant Sender IDs in the Smart Senders drop-down.

For example,

In Australia, you might see dedicated numbers, your own verified number, registered alpha tags and shared numbers.

However, in the United States, only TFNs and 10DLCs will appear. As these are the only allowed Sender ID types for this country.

How to send with Smart Senders

When you send an SMS:

In the FROM field, select Smart Senders.
In the TO field, add your recipient list

Smart Senders automatically matches each country in your recipient list with the correct, compliant Sender ID based on what you’ve configured in Manage Senders.

Using Smart Senders via the API

You can use Smart Senders via API — no code changes required. There are six Smart Assign API endpoints that let you:

Set a default Smart Sender
Check country compliance rules
Retrieve and manage your Smart Senders

Frequently asked questions

How do Smart Senders work?

Smart Senders are Sender IDs that meet two requirements:

The Sender ID type is allowed in the destination country (based on local telecom regulations).
The Sender ID is registered or verified in your account. For example:

Your own number is verified.
Alpha tags are registered.
Dedicated numbers, 10DLCs or TFNs are purchased and approved.

Only Sender IDs that meet both rules will show in the Smart Senders tab.

My alpha tag fails, why?

Some countries require network registration for alpha tags (e.g. Philippines, UAE). Smart Senders can not yet distinguish between network registered alpha tags and global alpha tags. We will introduce this capability in the near future to help you see at a glance which of your alpha tags are network registered and ready for sending in restricted countries. Please check the guidelines for your country to see if network registration is a requirement.

Is Smart Senders available for products other than SMS?

No. Smart Assign is available for SMS Campaigns and Quick SMS.

What is a Sender ID?

A Sender ID is the name or number that appears in the FROM field when you send an SMS. It tells your recipients who the message is from.

There are different types of Sender IDs, and each one has its own rules depending on the country you're sending to. Not all Sender IDs are available in each country.

Common types of Sender IDs: