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Mailjet Emails are not being delivered, and you receive a notification about being temporarily blacklisted.

Your IP address or domain has been temporarily blacklisted due to non-compliance with email sending policies.

Understanding Mailjet: A Powerful Email Communication API

Mailjet is a robust Email Communication API provider that enables businesses to send transactional and marketing emails efficiently. It offers a comprehensive suite of tools for managing email campaigns, tracking performance, and ensuring deliverability. Mailjet is widely used by developers to integrate email functionalities into their applications seamlessly.

Identifying the Symptom: Temporary Blacklist Notification

When using Mailjet, you might encounter a situation where your emails are not being delivered. This is often accompanied by a notification indicating that your IP address or domain has been temporarily blacklisted. This can significantly impact your email deliverability and business communication.

Exploring the Issue: Understanding Error Code MJ-020

Error code MJ-020 is associated with a temporary blacklist status. This occurs when Mailjet detects activities that violate its email sending policies, such as high bounce rates, spam complaints, or sending to invalid email addresses. Being blacklisted means that your emails are temporarily blocked from being delivered to recipients.

Common Causes of Temporary Blacklisting

  • High bounce rates due to sending emails to invalid addresses.
  • Excessive spam complaints from recipients.
  • Non-compliance with Mailjet's email sending policies.

Steps to Resolve the Temporary Blacklist Issue

To resolve the temporary blacklist issue, follow these actionable steps:

Step 1: Review Your Email Sending Practices

Ensure that your email lists are clean and up-to-date. Remove invalid or inactive email addresses to reduce bounce rates. Implement double opt-in processes to confirm recipient consent.

Step 2: Monitor Email Campaign Performance

Regularly monitor your email campaign performance metrics, such as open rates, click-through rates, and spam complaints. Use Mailjet's analytics tools to gain insights into your email deliverability.

Step 3: Contact Mailjet Support

If you receive a temporary blacklist notification, contact Mailjet support immediately. Provide them with relevant information about your email sending practices and any corrective actions you have taken. You can reach Mailjet support through their support page.

Step 4: Ensure Compliance with Mailjet Policies

Familiarize yourself with Mailjet's email sending policies and best practices. Ensure that your email content complies with these guidelines to prevent future blacklisting. For more information, visit Mailjet's Email Best Practices Guide.

Conclusion

By understanding the causes of temporary blacklisting and taking proactive measures to comply with Mailjet's policies, you can enhance your email deliverability and maintain effective communication with your audience. Regularly review your email practices and stay informed about Mailjet's guidelines to prevent future issues.

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