Pictures in messages from some senders are not downloaded unless you click a bar above the message. Pictures in messages from others download as soon as the message is opened. can you create some kind of list that allows this to occur?
Yes, Outlook can allow you to create this type list
Click on “Tools” tab, then select “Options”,
Now select “Security” tab and then click on the button: Change Automatic Download Settings.
Now disable option: Permit downloads in e-mail messages from sender and to recipients defined in the Safe Senders and Safe Recipients Lists used by the Junk E-mail filter.