Fixing Email Deliverability Issues with CodeIgniter on a VPS

Описание: Discover how to solve email deliverability issues in CodeIgniter when using a VPS server. Follow our step-by-step guide to ensure your emails are received successfully!
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This video is based on the question https://stackoverflow.com/q/70642766/ asked by the user 'Foozaweb' ( https://stackoverflow.com/u/7987392/ ) and on the answer https://stackoverflow.com/a/70666075/ provided by the user 'Foozaweb' ( https://stackoverflow.com/u/7987392/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing Email Deliverability Issues with CodeIgniter on a VPS

When working with web applications that need to send emails, it's crucial to ensure that the emails actually reach their intended recipients. One common problem developers encounter is email deliverability issues. If you’ve faced this issue while using CodeIgniter on a VPS server, you're not alone. Many users have reported that their emails return as "sent" but never reach their inboxes. Let’s explore this challenge and walk through a solution together.

Understanding the Problem

You may have noticed that your email sending functionality works perfectly on localhost or other servers but fails once deployed on your VPS server. Typically, this discrepancy raises a few questions:

Why does the email get sent successfully in some environments but not in others?

What configurations are necessary to get it to work on the VPS?

Is there something in the server environment that's causing interference?

In the specific case discussed, the initial code looked fine but still failed to deliver emails. Let’s break down the solution to this problem.

Solution to Email Deliverability Issues

The issue was ultimately traced back to incomplete or improperly configured mail headers. Properly setting up headers can significantly improve email deliverability. Here is a working example and detailed steps to resolve the issue:

Step 1: Update Email Configuration

First, update your email configuration settings as follows:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Set Mail Headers

Next, make sure you set the appropriate mail headers, which are crucial for email delivery:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Complete the Email Sending Process

After configuring the settings and headers, complete the email functionality as shown below:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following the above steps and ensuring that proper headers are set, you can resolve the email deliverability issues you experienced while using CodeIgniter on a VPS server. It’s not just about sending the email—it’s about ensuring that your communication reaches the inbox of your recipients.

If you encounter further issues, consider checking your server settings and consult with your VPS provider to ensure nothing is blocking outgoing emails. Happy coding!