When sending an email for announcements, campaigns, or promotions, you can add an image. To add an image to your account, follow these steps:
At the organization level, click the Admin icon.
Navigate to Setup > Image Gallery.
4. Click Browse to select a picture to be uploaded.
A message that the file has been uploaded successfully appears.
5. Enter a name for the image as shown in the following screenshot.
6. Click Save.
Click Copy Link to copy the link to the image and to use the link when creating an email campaign.
See the following screenshot:
Note: To understand how you can use these images in your email announcement, read the article: Creating Email Announcements.