Why Do Webmail’s & Desktop Email Clients Hide Images By Default?

One of our readers asked a interesting question today, the reader basically asked us that he signs up for a lot of newsletters, however whenever he opens up them in , the images are hidden and he has to click on a link to show the images.

This is not uncommon and can also be seen when using desktop email clients like and Windows Live Mail.


The reason for webmail providers and desktop applications blocking the images is because when you load a image, it can be used to send back personal information about you to the email sender.


For example a image can send back your IP address, type of operating system used and so on when it is loaded.

This is one of the main reason images are not loaded automatically in email messages, however you can still view images by clicking on the link which says Show Images or Display Images below.

Remember do not load images if the email has come from an non trusted source as they can create a problem for you.

Published by

Keith Dsouza

I am the editor-in-chief and owner of Techie Buzz. I love coding and have contributed to several open source projects in the past. You can know more about me and my projects by visiting my Personal Website.I am also a social networking enthusiast and can be found active on twitter, you can follow Keith on twitter @keithdsouza. You can click on my name to visit my Google+ profile.

  • Useful info. I never know that displaying an image can be used to send information back :)

  • Thanks for sharing this useful piece of info ! :)

  • whoa.. i dint had slightest idea image sends info. thanks

  • I knew images could be used to track if an email was opened. But never knew that so much info could be sent back !

  • Very useful information. Just as important is knowing that images can also be used to embed viruses which can infect once the image is viewed.

  • Jimmas

    Hello and thanks for the post.

    I received an email from a vendor I was talking to about an article and although I did clicked to show images, there was no image. I know it can be something like a dot, a pixel but is there a way to find out if it really exists ? I did a copy-paste to a word document, nothing seeing either.