In Outlook, you can reblock pictures from a specific domain by following these steps:
Open Outlook and go to the email message from the domain you want to reblock pictures for.
Right-click on one of the images within the email.
In the context menu that appears, select "Download Pictures."
Once the pictures are downloaded, you should see a banner at the top of the email with a message like "To help protect your privacy, Outlook prevented automatic download of some pictures in this message." Click on the "Add Sender to Safe Senders List" link in the banner.
A dialog box will appear asking for confirmation to add the sender to the safe senders list. Click "Add" to proceed.
By adding the sender to the safe senders list, Outlook will reblock pictures from that specific domain in future emails. This helps prevent automatic loading of pictures and protects your privacy.
It's important to note that this method is specific to Outlook and may not work in other email clients or platforms.