Are SMS Messages Being Filtered or Not Delivered?

Why does this happen? Why SMS messages are not delivered sometimes? #

Carriers have filters in place to block spam messages and protect their customers from unwanted messages. If your SMS message is flagged as spam, it may not be delivered. Some common reasons why messages are filtered as spam include:

  • Using all caps or excessive punctuation in the message body
  • Sending too many messages in a short period of time
  • Sending messages with suspicious or spammy content
  • Including many links or attachments
  • Links in messages have a poor reputation.
  • Poor Reputation of Phone Numbers
  • Sending messages from a number that has been reported as spam
  • Message content filtered due to repetitive messages (Use personalize message: Hi ((First_Name)) or use split test step to send multiple types of messages)

It’s important to follow best practices for sending SMS messages to avoid having them filtered as spam. To write proper emails, use correct grammar, and avoid writing in all caps or using too much punctuation. Also, ensure your email subject is relevant and not spammy. Finally, don’t send too many messages in a short time frame.

What can you do to avoid this? #

1. White List your phone number: #

To prevent unwanted calls, carriers and app providers are blocking or tagging calls that seem like robocalls, based on characteristics like lots of calls or short, unanswered ones. Carriers block unwanted calls and display labels like “Spam Likely”, “Telemarketer”, or “Fraud Likely” on the phone screen when their analytics detect suspicious traffic.

It’s hard to analyze these types of calls because legitimate calls like school closures, weather alerts, and patient reminders often share similar characteristics with fraudulent robocalls. Recipients have chosen to receive these legitimate calls. Still, when viewed en-masse at the network level, they can look like illegal robocalling.

Use the below link to follow the procedure on how to white list your phone number:

2. Send Personalized Messages #

Sending personalized SMS messages is a good way to avoid having your messages filtered as spam. Here are a few tips for sending personalized SMS messages:

  1. Use the recipient’s name in the message: Personalizing the message with the recipient’s name can help to increase engagement and reduce the likelihood of the message being marked as spam.
  2. Write in a conversational tone: Write the message as if you were having a conversation with the recipient. This will help to make the message feel more personal and less like a generic marketing message.
  3. Provide value: Make sure that the recipient will receive some sort of value from the message, whether it be information, a special offer, or something else.
  4. Avoid spammy words and phrases: Words and phrases that are commonly used in spam messages, such as “free” or “limited time offer”, can trigger spam filters. Avoid using these words in your messages.

By following these tips, you can increase the likelihood that your SMS messages will be delivered and not filtered as spam.

3. Build a Solid Sending Reputation #

A solid sending reputation is essential for ensuring that your SMS messages are delivered and not filtered as spam. Here are a few ways to build a solid sending reputation for SMS:

  1. Get permission: Only send SMS messages to people who have opted-in to receive messages from you. This can help to reduce the likelihood of your messages being marked as spam.
  2. Personalize your messages: Personalizing your messages with the recipient’s name, using a conversational tone, and providing value can help to increase engagement and reduce the likelihood of your messages being marked as spam.
  3. Monitor your delivery rates: Regularly monitor your delivery rates to ensure that your messages are being delivered and to identify any potential issues that may be affecting your sending reputation.
  4. Avoid sending too many messages: Sending too many messages in a short period of time can trigger spam filters and harm your sending reputation. Make sure to pace your messaging and avoid sending too many messages at once.

By following these tips, you can build a solid sending reputation for SMS and increase the likelihood that your messages will be delivered to your intended recipients.

4. Contact Receiving Carrier #

If you are experiencing issues with SMS delivery and have tried all of the above steps to resolve the issue, you may need to contact the recipient’s carrier for assistance.

Here is how you can contact the recipient’s carrier:

  1. Identify the carrier: You can usually identify the carrier by the recipient’s phone number, or by looking it up online.
  2. Find the carrier’s customer support number: You can typically find the carrier’s customer support number by searching for it online or by visiting the carrier’s website.
  3. Explain the issue: When you call the carrier’s customer support, explain the issue you are experiencing with SMS delivery and provide as much detail as possible, including the recipient’s phone number and the messages that were not delivered.
  4. Follow-up: If the issue is not resolved immediately, make sure to follow up with the carrier to ensure that it is being addressed.

By contacting the recipient’s carrier, you may be able to get more information about the issue and find a solution to the problem.

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