We have a magento based portal which triggers welcome emails on user signing up. These welcome emails have a header image, some content with links for the users to access their account and a signature with a footer text and image.
The problem now is that these emails always seem to land in the promotion tab in gmail and not to the inbox. When we remove the header image, it seems to go the inbox.
Anyone has any idea how we go about how to fix the image that will make it go to the inbox? The promotion tab is virtually a black hole - no one reads those emails.