# 404 Tracking Pixel Error

**URL:** <https://forum.mautic.org/t/404-tracking-pixel-error/36542>\
**Category:** Product Support\
**Created:** [September 15, 2025, 10:32pm UTC](https://forum.mautic.org/t/404-tracking-pixel-error/36542 "2025-09-15T22:32:44Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![cslater](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/cslater/32/14237_2.png) [@cslater](https://forum.mautic.org/u/cslater)\
**Post date:** [September 15, 2025, 10:32pm UTC](https://forum.mautic.org/t/404-tracking-pixel-error/36542/1 "2025-09-15T22:32:44Z")

</div>

**Your software**  
My Mautic version is: 6.0.4  
My PHP version is: 8.1.33  
My Database type and version is: MariaDB 10.6.22

**Your problem**  
My problem is: I am getting an error 404 when going manually to the tracking pixel - emails that are being read are not being flagged as read. They are only flagged when I go to an email manually.

These errors are showing in the log:

 ![image](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/7/700ff94c9b4a3180bc717dfb8357634195883606.png)

Steps I have tried to fix the problem:

I have added he following to the Nginx config file:

```auto
location ~ email/(.*).gif {
    try_files $uri /index.php?$args;
}

location ~ mtc.js {
    try_files $uri /index.php?$args;
}

location ~ mtracking.gif {
    try_files $uri /index.php?$args;
}

```

Any help would be really appreciated 🙂