Healthcare professionals get bombarded with junk e-mail and spam.
Did you know that if you open an e-mail message and display images, you may be setting yourself up to receive more junk e-mail and spam?
Some spammers have a way of "tracking" which e-mail messages get opened by inserting an image into the body of the e-mail message. When you open the e-mail, if the image also shows up, that alerts the spammer that your e-mail address is valid and active.
So, there's a reason why e-mail programs by default do not let you open images in the body of an e-mail. Be careful and add those trusted e-mail addresses to your address book. Do not open e-mail in your junk/spam folder if you know that the message is junk.