SMS Troubleshooting Wizard

Could the content of your message be the problem?

Sometimes, the content of a message might be blocked due to regulations or carrier restrictions. Try adjusting your message by removing any sensitive keywords, rephrasing, or avoiding certain types of links. Always follow the content guidelines closely. If you’re not sure what might be causing the issue, you can consult EasySendSMS for advice on content compliance.

Are you sending a high volume of messages?

Sending too many messages at once can sometimes overwhelm the system, causing delays or failures. Try reducing the number of messages you send at one time or spread them out over a longer period. Balance your message volume with industry best practices and your audience’s engagement levels.

Did you include a link in your message?

If you’re using a link, make sure it’s from a reputable source. Avoid suspicious or overly shortened URLs, as these can be flagged by carriers. For peace of mind, you can use EasySendSMS’s trusted URL shortening and tracking services to prevent issues with questionable links.

Are you targeting users in different regions?

Different regions might have specific rules that could block your message. Make sure your messages comply with local regulations. If you're unsure how to navigate these restrictions, leverage EasySendSMS's expertise to ensure smooth delivery across different regions.

Have you double-checked the recipient's number?

An invalid or outdated number is a common reason for failed delivery. Double-check the recipient’s number for any errors, like missing digits or incorrect formatting. Regularly validate phone numbers and clean up your contact list to remove inactive ones. EasySendSMS offers tools to help with this.

Is the recipient on a Do Not Disturb (DND) list?

If your recipient has activated a DND (Do Not Disturb) setting, your messages might be blocked. Encourage them to add your number to their allowlist or disable DND settings if they want to receive your messages. They can also check with their carrier for any DND settings that might be in place.

Could there be a problem with the message format or encoding?

Inconsistent formatting or incorrect encoding can cause delivery issues, especially across different networks. Ensure your SMS is standardized and doesn’t include unsupported characters or emojis. Experiment with different formats if needed, and test your messages to improve delivery.

Are you sending messages internationally?

Each country has its own messaging rules, which could affect delivery. Make sure your message complies with international regulations. EasySendSMS’s global SMS services can help you navigate these variations and ensure consistent delivery across borders.

Is the network overloaded?

If you’re sending messages during peak times, the network might be too congested. Consider spreading your messages out or using message throttling to avoid overwhelming the system. Prioritizing urgent messages can also help. Sending during off-peak hours may improve delivery success.

Is your sender ID registered?

In some regions, registering your sender ID can improve message delivery rates. Even if it's not mandatory, it's a good practice to ensure your sender ID is recognizable by your audience. If you're not sure about the requirements in your area, EasySendSMS can help guide you through the process.

Is the recipient's phone number active?

If the recipient’s service is suspended or their number is inactive, your message won’t be delivered. Use EasySendSMS’s phone number validation service to check if the number is active before sending.

Could the recipient have SMS functionality disabled?

If the recipient has disabled SMS on their device, they won’t receive your messages. Encourage them to check their settings, and make sure SMS is enabled. They may also need to verify with their carrier that SMS services are active on their account.

Are there any known service disruptions with the recipient's carrier?

Sometimes, carriers block certain sender IDs or limit message volume within a certain timeframe. Keep informed about potential carrier restrictions and plan accordingly. If the issue persists, contact EasySendSMS support for further assistance.

Could there be network issues on the recipient's end?

Network issues like congestion or weak signals can delay or block message delivery. EasySendSMS’s redundancy features can help mitigate these problems. You might also want to suggest the recipient check their network connection or restart their device to improve reception.

Has the recipient recently changed carriers?

If the recipient has switched carriers, using dynamic routing services from EasySendSMS can help ensure your message is still delivered correctly. Make sure you’ve updated their information in your database to avoid sending messages to outdated numbers.

Are you sure the recipient's number is correct?

Simple errors like a missing digit or an incorrect country code can prevent your message from being delivered. Double-check the number before hitting send. EasySendSMS offers number verification tools to help you catch mistakes early.

Could the recipient have blocked your number?

If your number is blocked, your messages won’t get through. Suggest that the recipient checks their blocked contacts list if they’re not receiving your messages.

Do you have enough credits in your EasySendSMS account?

If your balance is low, your messages won’t be sent. Make sure you have enough credits before starting your campaign. Consider setting up alerts or automatic top-ups to avoid running out of credits unexpectedly.

Is there something in your message that could trigger spam filters?

Certain words, phrases, or links might cause your message to be flagged as spam. To avoid this, keep your message clear and concise, and ensure it complies with all legal and regulatory requirements. Avoid excessive use of capital letters, exclamation marks, or other elements that might look suspicious to spam filters.

Does the recipient have enough storage space on their phone?

If the recipient’s phone is out of storage, they might not receive new messages, even if they’re successfully delivered by the carrier. Advise them to free up space on their device to ensure they can receive your messages.

Could your message be getting caught in a spam filter?

Some devices or carriers automatically filter out messages that seem suspicious. Make sure your content is professional and relevant to reduce the chance of being flagged.

Could the recipient's phone settings be blocking your message?

Some phones block messages from unknown senders or those that include links. Encourage the recipient to check their settings and allow messages from your number. Adjusting the settings may solve the issue.

Is the recipient's SIM card working properly?

If the SIM card isn’t seated correctly or has technical issues, messages might not be received, even if the carrier has delivered them. Suggest the recipient checks their SIM card’s placement or contacts their carrier for further assistance.

Need more help?

If none of the previous steps have solved your issue, don't worry. Please contact our support team for further assistance. We're here to help you get your messages delivered.