Traditionally Gmail has blocked all images in an email, and required you to allow images display. I’ve hated the feature and wished the imaged would automatically display. It seems that some fellow Googlers had the same idea, and soon you won’t have to worry about it.
Google said previously it required you to approve the image to “protect you from unknown senders who might try to use images to compromise the security of your smartphone or mobile device.” Now Google handles images differently, and Google will scan all your emails for viruses or malware. If you do want Gmail to ask you to load images, you can still turn this on by going to General > Settings and then checking the box for “Ask before displaying external images.”
This Gmail update’s initially targeted for roll out to the desktop, but Google plans to implement the image server change across mobile sometime next year. Are you looking forward to this change?