Skip to main content
All CollectionsCompliance
5 Things To Do Before You Start Sending SMS
5 Things To Do Before You Start Sending SMS
Fran Robles avatar
Written by Fran Robles
Updated over 5 months ago

Carriers employ spam/content filtering mechanisms to ensure their customers do not receive undesirable messages. If a carrier identifies a message as spam, it will halt the delivery process to the intended recipient. Gain insight into the functioning of carrier filtering systems that safeguard your text messages from being filtered.

Here are 5 Things To Do Before You Start Sending SMS

1.) Identify yourself as the Sender and Include a clear way end user can OPT OUT the messaging

This is both a best practice and an expectation of the carriers to avoid getting your messages filtered. Every message you send must clearly identify you as the sender, except in follow-up messages of an ongoing conversation.

If you don’t identify yourself, your text risks looking that much more mysterious and spammy to recipients. The opt-out language gives the end users control over their preferences and privacy.


2.) Avoid using spam words for SMS

To ensure successful delivery of your marketing message through SMS, it's important to consider the context. Each carrier (Verizon, AT&T, T-Mobile, etc) has a unique approach to filtering messages. They employ automated spam filters and now examine the content of text messages.

The filters are great at identifying specific phrases or words commonly associated with scams, gimmicks, and schemes in the messages, which are considered red flags.


3.) Create variations of SMS messages by using “Random text {{x/y/z}}”

In this manner, AI has several messages to select from and send to the lead.

This prevents the distribution of the same text content to hundreds of contacts, thereby avoiding the act of spamming the carriers.


4.) Ensure the phone validator is turned on for SMS, Email, and DNC

When these toggles are enabled, the system immediately helps you identify invalid numbers/emails as soon as leads are imported to Woosender.

For additional details on the DNC Registry, click here:


5.) Text frequency counts. Limit the contacts you send SMS to 200 per campaign/ per day

Be aware of your texting volume and frequency. Sending too many messages from a single number during a certain time period could cause that number to be blacklisted.

The wireless industry, which represents the U.S. wireless communications industry, advises that each long code phone number should stay under 15 to 60 messages per minute and under 100 unique recipients a day.

Did this answer your question?