Currently we have the option to re-size an image for an email signature using styling.
This is not compatible with all email clients - so sometimes the images will come through their original size.
Advice is to make sure the image is the correct size before adding it to an email signature.
Not all customers will be able to upload new images to there site as this maybe looked after by a third party.
So it become quite an effort to get images the correct size uploaded somewhere it can be access. It would be easier if there was an area within Prospect these images could be stored and referenced.