All you need to know about creating an HTML signature for Open Exchange in under 2 minutes.
Step 1 – Click on the settings tab on the top right corner of your screen and click on ‘Mail’. Set email format as HTML or HTML and plain text.
Step 2 – Click on ‘Signatures’ and then ‘Add signature’. Add the desired signature that you’d like to keep.
Step 3 – Click on ‘Insert image’ icon to add an image to your signature. Select your image and resize if necessary and click on ‘Save’.
Step 4 – Click on the ‘Default signature for new messages’ dropdown and choose the newly created signature and you’re ready to go!
You can watch this video also at the source.