==== Provide basic information to help troubleshoot ====
- iRedMail version: 0.7.3
- Linux/BSD distribution name and version: CentOS 5.6
- Any related log? Log is helpful for troubleshooting.
Unfortunately nothing
====

Hi again!

A week ago I decided to completely reinstall my VPS and install the latest version of iRedMail. Everything went very well, but I've been struggling with the load time of image files on my server. This includes files like JPG, PNG, GIF, etc etc. I've already discovered that it happens when the files are on the server for a few hours, and not right away.

Just see for yourself: http://worldrallyforum.com/galleria_norja2009hsss.jpg (Uploaded a few minutes ago, works fine right now when I'm writing this message, but perhaps it won't load well as you are reading this.)

When the image transfer is slow, it's only about 40KB/s. Other files, like a 100mb.bin file that I've uploaded as well, are being downloaded fine, so my guess is that it's not a network related issue.

I've been trying to play around with the Apache settings but that didn't solve the problem.

Attached you'll find my apache config file.

Hopefully you can help me solving this rather annoying problem.

Thank you for iRedMail, it's great!

Best regards,
Kevin

Edit: Other images:

http://i.imgur.com/rcYKh.png - Downloading an image file
http://i.imgur.com/xDBp1.png - Downloading a 100mb.bin file (that's my max download speed at home)